When you look at it that way, Lobster (can I call you that? lol), any city in the world can be 'bred' by the League to be deemed fit for a League annihilation.
You would have to be perfectly utopic with no flaws, which even if it were possible to do that, you have to grow the city toward that over time, not grow it deliberately in the opposite direction.
It does reflect God in that God created man imperfect and then punished him for being imperfect.
You're also right about it being a strong mirror to what the Joker said, which I'm surprised I didn't consider yet. Thanks for pointing that out to me.