Rulers

What makes up a good ruler?
Is a corrupt mayor that let corporations use experimental vehicles that killed hundreds of people a good ruler?
Is an alcoholic governor that miscalculated the budget and could not afford water for its citizens for a whole month?
Of course not, they are the last people anyone could think of to take any decisions for themselves, not to talk about thousands of people.
 
A reasonable ruler should have no property so that there is no risk of corruption. And of course he should be the embodiment of true knowledge.
With the collaboration of such a person and the reasoning of an AI you could take human advancement to a whole new level.