Mr. Zuckerberg didn't create these tax laws and cannot be criticized for minimizing his tax bills. If he had created a foundation, he would have accrued similar tax benefits. But what this means is that he amassed one of the greatest fortunes in the world — and is likely never to pay any taxes on it.

Anytime a superwealthy plutocrat makes a charitable donation, the public ought to be reminded that this is how our tax system works. The superwealthy buy great public relations and adulation for donations that minimize their taxes.

Source.