if capitalism is so fine and so wonderful, why do we even delegate the Power to Tax to our representatives to Government?
Government as designed and set up by the US Constitution is not a bad thing. It is when the politicians begin to convince themselves that the Constitution is a 'living breathing document that does not have to be upheld as the founders designed it, that it 'changes' to fit the desires of the politicians who become greedier, more hungry for power that becomes the problem.
Our current politicians at some point decades ago - for some, decided that the constitution and rule of law no longer applied to them, that those who wrote the law was somehow suddenly above the law. They decided to strip themselves of the
'shackles' of the mantle
'Servants of the People' to elevate themselves to the self-appointed position of 'rulers'.
Case in point: Several years back - probably a decade ago, US politicians - both parties - were caught committing the crime of 'Insider Trading', using their inside info gained form being Federal Politicians to enrich themselves. WHAT SHOULD HAVE HAPPENED was what happened to Martha Stewart - they should have gone to jail. Instead, UNBELIEVABLY, to keep that from happening they put on a theatrical display with the help of the media to fool the 'sheep' (dumb American voters). They actually publicly declared THEY DID NOT KNOW INSIDER TRADING LAWS APPLIED TO THEM.

?!
They apologized, said they would never let this happen again, and to prove it THEY DECLARED THEY WOULD PASS A BILL THAT SAID FROM THEN ON INSIDER TRADING LAWS WOULD APPLY TO THEM.
Again,

?! No such Bill was required because we already had laws covering that, laws that DID already apply to them....laws they did NOT allow to be enforced on them, preventing them from being held accountable. There was no overwhelming outrage from the 'sheeple' - they just swallowed the BS and let the politicians get away with their crimes. They actually took the politicians at their word that they would never let this happen again.
--- GUESS WHAT? After getting away with it, they quietly passed another bill the following week that permanently denied the public from being able to see their personal finances from them on so the PEOPLE would never be able to review their actions in the future and would never be able to catch the politicians doing this again.
Here's another great example: Former CIA Chief Brennan lied his ass off before Congress, committing Felony Perjury by telling Congress that 'NO, the CIA NEVER illegally spied on the Senate for Obama'. Three days later the evidence was exposed that they had done so and that Brennan had committed Felony Perjury. At this point Brennan is read his Rights and perp-walked off to jail, right, like any of us would be under the equal law that applies to us all, right? WHOEVER is caught doing this is guilty of breaking at least 5 different laws, regulations, and rules.
Yeah...NO! The Democrats and Republicans CUT A DEAL TO PREVENT BRENNAN FOR BEING INDICTED for illegally spying on the US Senate and committing Felony Perjury. All Brennan had to do was stand before Congress and admit to them that he and the CIA had indeed illegally spied on the US Senate, that he had lied about it, that they had been caught, and it would never happen again.
CIA director John Brennan lied to you and to the Senate. Fire him | Trevor Timm
CIA admits to spying on Senate staffers
Brennan blatantly lies Senate | User Clip | C-SPAN.org
The Once Meaningful Theory of our system of Checks-And-Balances has broken down, ending when the new self-appointed 'overseers' / 'rulers', not 'Servants', of the people decided that protecting themselves and each other was more important than holding each other / the government accountable to the people.
This is when the train starts to come off the tracks....when those forcing the train off the tracks start justifying their actions...and lying and deceiving the people....like what is happening now, a FACT supported by a plethora of evidence.
And when the people become so divided, so brainwashed / indoctrinated that they begin taking sides and begin defending their own preferred party crooks / criminals because they have been sucked into the idea that their own PARTY is more important than the entirety of the country, as is also happening now, then sh!t starts going really haywire.
-- The politicians LOVE this moment because they know they have conned the American people so badly that the American people are fighting amongst themselves over which politicians are LESS criminal than the others instead of demanding they ALL be equally held accountable.
This is the point where we find ourselves now, Party over Country, where we wake up to find that there has been a 2+ year conspiracy and attempted coup by Deep State partisans, where in their crusade to take down the President undeniable evidence of crimes committed by the Conspirators is exposed, and the conspirators who have managed to put themselves in charge of the whole thing refuse to acknowledge / investigate their own crimes they have unintentionally revealed.
Case in Point - the fact that the person who did this was Hillary Clinton is completely IRRELEVANT; however, operating an unauthorized, unencrypted, unsecured personal server containing TOP SECRET data and storing it in the BATHROOM of a small tech company that does not have the legal clearances to have it in their possession to begin with is a CRIME!
ANYONE who stores both classified data and unclassified data together on the server and treats them differently, as different classifications, is GUILTY of breaking the law. Whatever is on that server - all of it - is classified as the highest classification, which was TOP SECRET. (*YES, that's a law.) Sending and receiving TS classified material in open unclassified e-mail is a violation of numerous laws, regs and rules. Failing to turn in all work related emails/documents for archiving is a crime, destroying those documents by deleting them, especially after they have been subpoenaed....destroying classified devices with hammers - is a crime of illegally handling and illegally destroying classified in an illegal manner not allowed in numerous laws, regs, and rules....
AGAIN, it does not matter one tinker's damn WHO did this only that it was done that makes all these things criminal acts, criminal acts in violations of laws that apply to EVERYONE. Yet to this day there are some who STILL argue that the person actually caught doing all of this is somehow 'innocent', not because of that they did not do it - that has been proven, but because of who they are and what PARTY they belonged to.
So, back to your original pondering about entrusting politicians to do their jobs...
There is an old saying:
'Power corrupts. Absolute power corrupts absolutely.' When those in power reach a point where they - the 'checks and balances' that are supposed to be the mechanism that ensures that power entrusted into the hands of elected officials does not corrupt / is never corrupted become, themselves, corrupted and begin to believe it is more important to protect fellow politicians and / or party than to act as the 'Safeguards' against corruption - that is the beginning / was the beginning to where we find ourselves today.
The 'Checks and Balances' created by the Founding Fathers id dead. We see it every day now.
Not long ago elected politicians entrusted with power were exposed as having engaged illegally in sexual misconduct for DECADES. Instead of STOPPING IT, they created a committee whose sole purpose was to cover it up WHILE IT CONTINUED ... for DECADES ... by illegally using our tax dollars to BUY THE SILENCE OF THEIR VICTIMS....WITH OUR TAX DOLLARS..FOR DECADES. NOT ONE of them were incited for their crimes. They were all allowed to retire or simply get away with it...and we were told they would have to repay all the government tax dollars they used to silence their victims.
Again,

?! THAT was it? After THIS, who can actually say that our system of 'Checks and balances', that Justice is somehow enforced equally now?