i have actually herd from a lot of people and articles (doesn't mean its true) that steve and apple in general were real infamous about not giving to charity.
Steve Jobs may have been a visionary, but Gates does give somewhere around 80% of his profits to charity. 10% go back into his company. The rest for his family. Don't get me wrong, he still lives more luxuriously than most people do, but he definitely deserves it with all he does for the needy.