Darkness or Light? Philosophy in Knights of the Old Republic.

By the way, I read somewhere that Revan couldn't do anything with the Death Star because it stopped functioning... Maybe I read this about the second part... if so, I apologize for my ignorance because I haven't played the second one yet :(. And what about Bastila? Or did they both become hermits together with Revan?
Alex, I'm almost 100% sure you always play as the dark side :D.