I'm not a fan of Jobs, but seriously fuck that person who wrote that story. While I absolutely admire and praise what Buffett and Gates does, I'm not going to scorn a billionaire that keeps all his money. Hell he could go all Scrooge McDuck build a huge vault and swim in it for all I care.
Would it be cool if he just started donating millions to everything, sure. Is he a dick if he isn't ? no.
Actually not being a philanthropist with billions at your disposal is almost the definition of being a dick. But last I checked there were no laws against being a dick and he can be as big a prick as he cares to be and it's no one's business but his own. I think his own actions from history have proven he is a massive asshat. But then so are a great many millionaires and billionaires. I notice that Bill Gates didn't start his foundation until he realized that history might remember him as a massive twat unless he did something worthwhile with his money.