It’s still weird to me that Bill Gates is one of the good guys now. As head of Microsoft he was a ruthless business man who ran a monopoly that every Linux user despised. Since then Microsoft has faltered, or at least the computing arena has changed since the nineties and they’re still catching up.
Anyway, he and his wife now head the Bill & Melinda Gates Foundation that do amazing work combating disease and helping projects all over the world. For a taste of what they do here are two podcasts worth listening to: