Too late, I'm afraid.
Actually I think Toronto's reputation is fine. I don't think they really give a hoot who's running around in City Hall. It's a business town, not a political one. So in order to show their contempt for politics, why not make the jester king?
As people around the world are watching all of this unfold, there seems to be more and more discussion of just how he was ever elected and why people in Toronto support him. I think that is the discussion that is really harming the international reputation of the people of Toronto.