Sir, no one's "clean" in politics. Even the most revolutionary people have had issues. Some wanted power at all cost, no matter how many got killed in violence, some wanted money to unlimited levels, some wanted fame and some, just the high of feeling like on top of the world. Now some did work for their people, those kind of people usually lay low and make a difference in people's lives, instead of doing any of the above. The Japanese have leaders like that and there are a few other examples of such personalities who keep a low profile, yet high impact to their public / human growth.