^But that's rather the point. The game (or rather Kreia) asks is black-and-white morality a tenable world view? Can any decision be that simple? They even exemplify this almost as soon as you land on Nar Shaddaa: after seeing you help out some homeless guy, a beggar approaches you and asks for a meagre hand out. If you refuse him, he may go hungry, but if you do the compassionate thing, some other street dweller sees what you give him and as soon as he rounds the corner the bloke you helped is soon beaten up and mugged.
It also looks at the role of Jedi and Sith. Where the Sith are perpetually locked in a cycle of betrayal and self destruction, the Jedi are committed to coddling weakness, in those they profane to protect and even in themselves by relying so totally on the force.