If his principles are repeated genocide, installing fascist dictators, choking his pregnant wife, violating every rule of war, training child soldiers, and just straight up ignoring that the Jedi aren't as strict as he pretends, including multiple Masters with wives and Corellian Jedi straight up having kids raised in the temple thanks to the canonization of Corran Horn, then, yeah.
I guess he stood by his principles. That he shares with Nazis.