I think that Bill can do a world of good by sharing his thoughts via a blog like this. Assuming he is candid and fosters real communication, that is. Sections like 'What I'm thinking about/what I'm learning' is exactly the right attitude.
The problem is that Bill Gates only reads books that reinforce his existing beliefs. That's why he's so pro-KIPP, because he doesn't have any interest in authors like John Taylor Gatto. (Or at least this is what I heard from someone who had lunch with him recently.)
Also, I'ma huge fan of the Underground History of American Education (http://www.johntaylorgatto.com/chapters/)