People love to shout from the top of the hill how much they promote equality, fair treatment for everyone, until it hits them in the pocket. Until the restaurant bill is a bit higher, until their Amazon orders aren't arriving by the end of the same day. And then they find reasons to explain why equality and fair treatment aren't for everybody. Or they close their eyes and pretend there's no problem, those people don't exist as long as you never think about them.
And the reasons why poor people are universally exploited are straight forward. They have no say, and no power. When other discriminated groups (color, gender, sexual orientation, etc.) get some power they're still part of that group but when poor people get to power they are no longer poor and have very little interest in pursuing that cause. On the other hand trying to help any of these people is quickly branded as socialism (or worse, communism) and that's a scarlet letter sentence which most do their best to avoid.
And the reasons why poor people are universally exploited are straight forward. They have no say, and no power. When other discriminated groups (color, gender, sexual orientation, etc.) get some power they're still part of that group but when poor people get to power they are no longer poor and have very little interest in pursuing that cause. On the other hand trying to help any of these people is quickly branded as socialism (or worse, communism) and that's a scarlet letter sentence which most do their best to avoid.