This is generally true about ALL liberals, not just billionaires giving their own money. They are buying a sense of righteousness, and whether they are spending their own or others' money, they don't want to hear that their purchase was fraudulent or negligent.
We're talking eternal destiny here, don't tell me that all my efforts are for naught!
Which, incidentally is exactly why the Cross and Christianity are so offensive to them.
The reason liberal billionaires give to charities is so they can deduct it from their income tax, not for the sense of giving