" I can't imagine someone like Steve Jobs or Warren Buffett actually wanting to keep people from resources or excess wealth if they had no use for it."
1. Na, some wealthy people would totally do that. It's their hard earned money and they're entitled to spend it however they want, after all. Get a job and stop looking for handouts!
2. Who says they even have excess wealth to begin with? I may make a billion dollars a year, but I'm living in this cramped mansion, and I've still got payments on my super-yacht. Living this lavish lifestyle is expensive!