Very wealthy or influential public figures (such as Bill Clinton and Bill Gates) have become major funders in the global health arena, providing millions to developing countries and/or international organizations. How do you think this will influence the

 very wealthy or influential public figures (such as Bill Clinton and Bill Gates) have become major funders in the global health arena, providing millions to developing countries and/or international organizations. How do you think this will influence the future of public health? What benefits and challenges may develop?