League of Legends; The Apocalypse

Looking through the boards, I realized something with champs: There's a lot of champions out for blood/dominion of Runeterra: Lissandra wants to freeze the world over, Brand wants to burn the world over, Noxus wants to conquer the world, Void champions wants to destroy/eat everything, Shadow Isles champs seem about the same, and there's few if any champions who care about trying to do good in the world (Shen/Akali/Kennen come to mind, and maybe Lucian, but nobody else). Bard is less good, as the guy who hoards all the OP items lore-wise.

So what I'm curious of, to be quite blunt, how has the world not gone to shit? Demacia and Noxus may be able to hold their own for a while, but I'd assume areas like Shurima and Frejlord would get overwhelmed, along with Zaun, Bandle City, Piltover, and other smaller areas. So either I'm missing something, or there's a question that needs to be answered.