I'll add that what's even better then giving away your money is not taking too much in the first place.
Steve Jobs was a multi-billionaire but, as Apple's stock laps the field, it bears noting that Steve's billions are a fraction of what others in similar positions are worth.
Not necessarily. Bill Gates didn't just start giving money away, he started spending it in a fairly controlled manner, trying to accomplish well defined goals.
Maybe Bill Gates ran out of ideas how to help using computers, though.
Jobs hadn't run out of ideas though.