A lot of what NGOs, foundations, and other philanthropic organizations do is seek to mold things in some way that is beneficial to the founders with tax advanta

A lot of what NGOs, foundations, and other philanthropic organizations do is seek to mold things in some way that is beneficial to the founders with tax advantaged money. Rich people don't get rich by giving their money away randomly. For example, if Bill Gates didn't start the Gates Foundation his money would have been highly taxed, and he would have lost control of it. By starting the Gates Foundation he keeps control of that money, and he can use the foundation to steer policy in ways that are beneficial to him.