Propaganda? Please. Outside of the open source tech bubble Bill G doesn't/didn't have a negative image to counter. He has given away ~$30 billion which is not a small portion at all (> half of his current net worth). It's his main focus and he will likely donate teh bulk of his remaining fortune. iMacs and iPods don't save lives, providing vaccinations saves millions.
http://www.cnn.com/2010/BUSINESS/01/29/davos.bill.gates.dona...
In the innovative products race Steve Jobs wins. In the does good things race Bill Gates wins. It's admirable.