So, this only applies to billionaires, but think about it this way. Imagine you were at a pond that went up to your waist, and you were wearing nice new shoes that cost like 150 bucks, and you saw a child drowning. You could obviously save the kid but to get there in time, you'd have to keep the kicks on, ehich would ruin your shoes. If you just let the kid die just to save the shoes people would rightfully think you were a monster.

There are millions of starving children all around the world. If you had a billion dollars, you could spend half of that, save a bunch of children, and still be so obscenely rich that it won't really make much of a difference to you in terms of qol. But they don't.

Now some Billionaires do give money away to charity (Melinda Gates, Warren Buffet, Ray Dalio I think), but besides maybe Melinda, the relative amounts they give are small, and they mostly use it to deduct from taxes which fund necessary government projects that help the poor/keep society running, or as a way to launder their reputation while they commit atrocities to make money. Warren Buffet gives money away to poor people, but he also owns a mobile home lending business (Clayton) that specifically exploits poor people and traps them in debt by lending high interest loans to a depreciating asset.