I tend to notice that this discussion is taking place mainly amoung americans. It seems like she isn't the global icon that we are made to believe she is. As for her school I agree that schools in Africa are a better way o spend money because
a) everyone there dreams of an education they want to learn and value school higher than riches
b) In the US students are dropping out of school and treating it as if it has no value besides socialization. It is more a gathering place to compete. Who has more friends, money, freedom, who's the toughest, meanest, who has the most backup, who has the best grades and extra curricular activities to get into a better school. No one is there to learn anymore, no one chooses to learn anymore.
c) so what if she builds a nice school with a few extras that p[eople there don't need? Our school systems have lots of thing they don't need. Please tell me what a grade 1 student needs a brand new computer to research polarbears on when they can just pick up a book? Wih the price of all the computers we pump into our schools to solve the problem schools can employ more teachers and tutors, buy more text books, expand our schools and create real safe play/relaxing areas, or even hire security to keep our kids from attacking eachother and provide a safe place to learn.
d) we have private schools in poor areas or town where we think no one can afford them but you'll be amazed how many families will sacrifice every extra cent to send their kids and others recieve scholarships thus oppertunities they would other wise not have.
e) instead of having te rest of the world try to solve a problem, why not provide them with the education to better themselves and their culture from the inside using people that are themselves affected. "teach them to fish" in otherwards instead of asking the world to fish for them.

I could go on and on about the school system and attitudes towards hem in our culture, while we are a little different our schools systems run on the same concepts, and while our schools have improvements to make it's truely the people and attitudes that are fucked up.