One paragraph in the article may be a bit misleading:
QUOTE
As some have grown enormously rich, they are turning to philanthropy in a competition that is well beyond the means of their less wealthy peers. “The ones with $100 million are setting the standard for their own circles, but no longer for me,” said Robert Frank, a Cornell University economist who described the early stages of the phenomenon in a 1995 book, “The Winner-Take-All Society,” which he co-authored.
While I would not ever want to disparage random acts of kindness, even by the super-rich, it is probably not realistic to expect that giving by the rich will solve or even ameliorate social ills.
That is because most do not investigate where there money goes well enough to assure it is not wasted, not because they can't afford to but because they don't need to bother and cannot be bothered.
Also they tend to give to the popular cause of the moment rather than to organizations with demonstrated capacity to affect poverty in a fundamental way.
Giving their tax-breaks back to the government would be a better start. Promoting an increase in taxation on a graduated scale would be a good way to continue. Voting for, and encouraging the election of more responsible political representatives could complete a cycle of wealth redistribution that might have a more salient effect. I doubt we will see any of these things happen any time soon. But until they do the poor will continue to gamble away the small amount of excess income they have in hopes of becoming one of the 825.