I'm a former employee of MSFT, and a great admirer of the Gates' dedication. But let's be clear - the fact that they employee 100k people isn't giving back in the least. They have a business, the business needs functions done, they're getting hours worked for money paid. That's not "giving back to society" in any way shape or form.

His billions of dollars donated to mosquito nets in Africa (among many other things) where he gets nothing back ... that's giving.