People don't realize that "philanthropy" is a standard way for ultra-rich to peddle influence and store their money to avoid taxes. Many philanthropies invest their donations and actually make money off investments every year, spending little. It is an investment vehicle. And an easy way to accept bribes. And for influence, take for example Bill Gates' "philanthropy" to fund charter schools and undermine public schools, ultimately enriching charter school capitalists.
This thread showcases exactly why they do this: It is enough to simply slap the name "philanthropy" on something in order to have people thinking it is good and defending you. It is an effective PR stunt, which is why they all do it. Don't be the fool.