It's a little strange to attack the Bill & Melinda Gates Foundation for only giving away 10% of it's wealth per year and investing the rest. They give away a f

It's a little strange to attack the Bill & Melinda Gates Foundation for only giving away 10% of it's wealth per year and investing the rest. They give away a far larger proportion of their endowment than most other foundations. Notably, they recently announced that they intend to give away all their wealth within 50 years of Bill Gates' death. This is much different from other foundations funded by personal wealth: think of the Rockefeller Foundation, Ford Foundation, Carnegie Foundation, etc. that have effectively become self-perpetuating entities.