Well, most of the rich people I know donate to all kinds of actual charities, and they also, you know, create lots of JOBS - that's why they're rich. Creating lots of jobs is pretty awesome.
They also often work quite hard at ensuring those jobs stay where they are.
The interweb forums all make the same mistake of lumping in "Rich people" into a single category.
Do Directors and C-level executives of large corporations make possibly immoral, evil decisions? Seems like it. They're often rich people, sometimes because of the company they are working on, sometimes that's only part of it. Or none of it.
Are there dynastic families full of rich people with some useless people who don't really contribute anything of value to humanity and just kind of hang out and party their entire lives until they die of a drug overdose or cancer with no real friends? Sure.
Money and wealth are not what the average person who considers themselves "not rich" think they are.
I'm not rich by these VC standards, but most of the people in my country of residence would consider me rich - compared to them, I am, in their view. Not in mine.
So - at christmas I go out and buy toys for 300 poor kids. None of that money goes to fund anyone's paycheck - I wrap the stuff up in paper, write some notes, and load it onto the truck. It goes to be distributed. Is that an awesome thing? It sure is for those kids and their families every christmas.
What you do with what you have for reasons other than the accumulation of wealth is up to each of us individually. And the most valuable thing many people have to offer? Time.