Yours is such a tangential comment, it doesn't remotely relate to anything in the Gates's letter. You have just repeated the same old blah about corruption, safety, and infrastructure. All that Bill and Melinda are saying is that solving the problems they classify as energy and time will make the world a better place.
> In general, the problem in 3rd world countries isn't education, or sanitation, or lack of capital, or mosquito nets, etc...
I don't even know where you pulled that out of. It would be more credible if you could cite some evidence.