Well it's bit of an odd subject, after all you are against Thanathon who is an "arch traditionalist" and also if you kill Harkun your character says something about changing the empire, so it's as if the story wants you to be LS and make new rules and stuff.
On the subject of Ashara, her personality is not really established clearly, first she is a whiny Jedi and immediately she suddenly hates the republic for no reason, agreeing on almost every DS decision on Belsavis (even keeping the Esh-Ka and unleashing them on the empire's enemies) and that "the galaxy needs an powerful empire to maintain peace" (in one conversation), so... okay? When did she come to this conclusion? The game has a bad time explaining.