Very interesting and thought-provoking point. Although on the other hand, I personally think that Bill Gates, acting as a king and trying to figure out what he thinks will do the most justice and good, is going to do better for the world than what people in a democracy will vote for themselves. Democracy has given us unbalanced budgets, runaway debt, pointless wars, and corrupting entitlements. Bill Gates is doing some amazing and wonderful things.
Not saying that monarchy is better than democracy. Democracy is best at protecting rights, which is the function of government. But as for making the world a better place, really, individuals are probably best at that.