>> The really evil and really virtuous people are all in the wizarding world.
The series is a simple morality tale, good vs evil, with good personified by Harry and his friends and allies, and evil personified by Volamort and his allies. It is set in the wizarding world, the muggles are only there to give the reader a bit of an anchor, a view point, to watch the drama play out.<<
The Patriarch of the Russian Orthodox Church described Harry Potter as a a fairy tale with a good moral as all countries have such fairy tales.
This was in response to a lawsuit trying to get Harry Potter banned in Russia (where Witch craft is banned by law).
Godless commies ban witchcraft? Who'da thunk it?