I asked with hopes of learning why you think what Bill Gates "is doing" is un American, if only in private. You can choose not to share, but if asking publicly instead of privately precludes that, I call BS.
I believe in the greater good. Example - I don't have children, but I vote to be taxed in order to help fund schools and school programs.
If the Bill and Melinda Gates Foundation contributes more to funding the World Health Organization than the United States does, is that a bad thing in your opinion?