Earlier quoted context omitted.
Saint Louis IX, King of France
... who ordered the burning of Jewish religious books, and expanded the scope of the Inquisition within France. But even if you accept Louis IX as the perfect ruler, what do you do once he dies? What do you do when you get Louis XIV?
I'm not suggesting a monarchy is the best way to get such a ruler, in fact it seems problematic for that exact reason. I'm just an uneducated fool with limited opinions on government, but I think if we elected something like a President but with much more power like a king, and if the people who elected him understood virtue correctly, and if the election process was made much more fair, and if nations governed smaller (more manageable) amounts of people than the USA does, and if corporations were given significantly less say in the direction of the government (to shut all those awfully abused loopholes), the world would be on a good path.