Yea, I thought that might be one of the only decetn ways to pull this off, but thats a one trick poney.
You can't keep putting the player in that position all damn game.
At the same time, it's not going to really "tempt" anyone too much. I mean, people will most likely see right throught it. If I set out to play a LS jedi, I'm prolly going to do the "right thing" without feeling to much pull.
I like the idea of having more temptation, but I don't see how it can be done with out over-kill on the drama, a unbalanced path for the DS, or resorting to "tricks"
EDIT: Tyrell talked of so much temptation it's almost impossible to be good, but at the end of the day people won't have much problem staying on the LS no matter what you hit them with (unless you effectively "trick" the player) because:
1. It's a video game. No temptation will beat your want to play through a certain path.
2. You know you can always play the game a different way again.