Rich people, like any other group, are not inherently evil, brainwashed or more selfish than any other economic group. Wealth itself is just a tool—it amplifies the choices and values of the person who holds it. Some wealthy individuals use their resources for selfish or harmful purposes, while many others contribute positively to society.
Bill Gates and Warren Buffet are good examples giving away most of their wealth for charitable purposes. Both are flawed like the rest of us. Howard Hughes donations have let to many medical breakthroughs.
That said, is a billionaire that does little for charity more brainwashed or evil than anyone else? Most people, including many of our leaders, give very little as a percentage of income to charity.
I'm fortunate enough to have many very wealthy clients. Many multimillionaire but no billionaires. And I have to say, many of them are some of the most charasmatic, thoughtful and caring people I have ever met. The things I see them doing to better society have truly inspired me to do more.
Those who say the wealthy are the problem, instead of blaming others for the worlds problems, I ask what you are doing to better society?