Keep in mind that everyone has this misconception about what an RPG is. Thanks to "JRPG's" like Final Fantasy, people have believed those are RPG's, when they are in fact not. They are just fantasy games with stat systems and such, without any of the actual role playing.
Fallout, Elder Scrolls, Planescape: Torment, Baldur's Gate, and now Mass Effect, those are real RPGs. You are the main character, not just walking around in thier shoes. You have a level of freedom no FF game has ever granted, and in the case of some, nearly unlimited freedom. In the Fallout series if you so wish you can literally genocide the entire populace of NPCs. Your actions effect the world, not the world effects your actions like JRPGs.