I can understand where you're coming from. I don't come from a wealthy family so it's really something I'd have to work on myself. Instead of wallowing in anger try converting that energy into something productive, like making money.
A) Let us assume that every rich person becomes poor. Your life is still bad. B) I know some rich people who are actually polite at all times and value what they have. C) Africa, stop complaining on the internet.