Buffet is set apart and exceptional because he understood exactly what it takes to trick everyone into thinking he is a good man.
(btw that can help his stock too)
Now that he's gonna go soon (and having just a dozen more human gatherings and dinners left).. we can see that he fully doesn't give an ounce of fuck after he had received in full what he was really after all along.
After much show, Buffet's "charity" money is simply inherited by his kids just as it was planned all along! (Tax-free too, you plebs!)
The ones that care about the world are like Larry Page, tho still so evil.
And all of the billionaires donate money, I don't think that sets him apart from the others all that much.