And what if government and corporations are engaging in policies that they know worsen people's lives?
I guess first I would have to know what you think those policies are. There is also a side point to that in that those with the drive don't allow road blocks to get in the way of their goals. Think about it. You are suggesting that there are political and corporate barriers that prevent certain people from being rich. Which suggests A) either it is impossible to circumvent said road block (and complete impossibility isn't very likely) or B) that they give up when they reach a certain road block. If it's later they probably don't have what it takes to reach the goal in the first place.
There have been several sources now between these two threads (which you conveniently glossed over) that show that it is A) far from impossible to become wealthy and B) that in fact no, the Trumps of the world are not the typical wealthy (we're talkin' hundreds of millions to billions). That number of people at that level of wealth isn't even close to half of all millionaires (again despite you claiming otherwise and ignoring the evidence presented). Hell one of those sources (The critique of the Forbes 400) was posted by someone on your side of the argument and it still supports my position.