You haven't lived in the USSR or in the Eastern Bloc, have you? So far, there wasn't a way of living invented where there were no abused and/or abusers.

There's nothing inherently profitable about abuse. Making your workers miserable generally makes them less productive.

The thing with banks is that they aren't productive in the first place. They're scalping off whatever they can get, with fierce competition. If you're fresh out of college and get hired into these places, you can't just walk away without risking your whole career. It's a monopsony. That's what enables abuse, human nature takes care of the rest.

Non-capitalistic societies have historically been brutal and devastating for the unfortunate population experiencing it.

While I don't exactly agree with this, I'd like to remind the sibling comments that simply saying communism is worse isn't a valid argument for capitalism.