It's what King Arthur does.
Well, typically isn't it more depticted as "Arthur goes out and unseats all the greedy warlords, and unites people under one peaceful banner"? Arthur's in the lawless time after Rome leaves Britain, and local leaders are all looking out for their own interests, getting into fights among themselves that mean nothing to their people (but cost their lives), while at the same time leaving the people victim to threats from the outside?
Sounds like the evil princes had already taken over, and Arthur is again, reacting to the situation.
Good works on the basic tenet that if it ain't broke, you don't fix it. If someone breaks it, you break them, and then fix it yourself.
