Because usually, they've made it at my expense.
If you accept the notion that capital is an accounting of labor, as Lincoln wisely said, than 1% of the population did not do 43% of the labor. The other 99% of it did so, but they did not get a fair or equal share of the proceeds.
Then they should stop.
Case in point. Last job I worked in, I handled 20 million dollars worth of purchases that were sold for a 30% mark up. The share I and the rest of the team that made that happen less than 1%. But the rich people who owned the company even begruged us that.
Did you quit? Seems kind of stupid to work a job if you don't feel you are fairly compensates.
I had no problem with what they were paying me if htey kept up their end of the promise.
They couldn't even meet that low standard. The minute I had a medical issue, they were looking for ways to get rid of me.
BUt you miss the point, completely.
Ideal world, every workplace should have a union to negotiate base benefits and pay, and have full access to the books to make sure they aren't being ripped off.
I was in kind of an odd situation because I saw both what we were paying for product and what we were charging the customer for it. (Incidently, the customer eventually fired us because we were gouging him. Imagine that.)