I play as a resisting Durge and nope, it’s not as comically evil as possible. You don’t have to be a murder hobo and you only have one completely unavoidable kill. I play as a good character resisting the urges, but you can also play as a pragmatic/selfish evil character as Durge.
I might be misremembering it, but I think there is even a line about Durge not being an uncontrollable murderhobo like Orin.