If you play Revan as a murderhobo, it raises questions like “seriously what the hell is wrong with the Jedi, did they all take stupid pills?” “What is Jolee *doing*?” - the satisfying way to play an evil Revan is to play it as if his false personality holds until the Temple, IMV.

Revan as a Machiavel would be an interesting route but I’m not sure if the scripting would support it