Also, did you read the linked article? He clearly addresses your point.
>Innovation is a good thing. The human condition – put aside bioterrorism and a few footnotes – is improving because of innovation,” he says. But while “technology’s amazing, it doesn’t get down to the people most in need in anything near the timeframe we should want it to”.
Well, what Google and Gates' are doing is still better than Jobs' take on charity from his biography that demeans it:
"“Bill is basically unimaginative and has never invented anything, which is why I think he’s more comfortable now in philanthropy than technology. He just shamelessly ripped off other people’s ideas.”"