Seriously, what is up with the self-flagellation of the "Woe is us you shouldn't be doing <grand thing> until everyone has a pony" people?
Just seriously, can we once and for all stop it with these "fix this planet first" tropes? Really at it's core all of these arguments are "Hey I think what you are doing is a waste of money because I am not the one directing you how to spend it". Damn commies, always wanting you to adhere to their 5-year plans or whatnot. Just let people do their own thing. Just because someone is very very very VERY wealthy does not mean by default you get to tell them what to do. Unless you are of the opinion that "that money does not really belong to him" in which case you have already proved my earlier assumption about you being a communist.