Oh, I don't know any of those. The only billionaires I know of are those providing service to consumers or businesses that people can freely decide whether to pay for or not. I just subscribed to another thing on Amazon for far less in price than the value I get for it. Thanks Bezos!

The selfish people I know of are politicians and online commenters who think they're entitled to the wealth built by other people.

Okay but the quote in question and this topic generally is more than just the billionaires you know of and the value you personally get from them -- it's about how billionaires exist in the system as a whole, and what it takes to become one.