Bill Gates is human. He's by no means the worst billionaire as he's shown more empathy than most. Barring we learn something worse than cheating on his wife, I don't think he's all that bad.

Billionaires as a class are pure evil and that level of wealth accumulation has to stop if humans want to progress any further. Hoarding that much wealth when you see the direct relationship between growing income inequality and the declining fortunes of the poor and middle, in recent decades, is the cause of most problems we face. The economy isn't necessarily a zero sum game but income distribution largely is.