An interesting take in The Economist; see the full article for details
Mr Gates had the good fortune to be perfectly suited for his time—but he is less well-equipped for the collaborative and fragmented era of internet computing. This does not diminish his achievement. Nor, as some would have it, does his philanthropy necessarily magnify it. Whatever the corporate-social-responsibility gurus say, business is a force for good in itself: its most useful contribution to society is making profits and products. Philanthropy no more canonises the good businessman than it exculpates the bad. In spite of his flaws, Mr Gates is one of the good kind. Some great industrialists, like Henry Ford, stick around even as the world moves on and their powers fail. Mr Gates, pragmatic to the end, is leaving at the top.