Quinn and Tommy are the two characters in this game who have shown few (if any) redeeming qualities, and who are actively trying to lure others to the dark side.
The Tri-Alphas are too stupid to be truly evil, and Tybalt, too shallow. Even Steve has exhibited some good traits, if you chose the right option. But Quinn and Tommy surpass even Eric (of Big Brother infamy) on the evil scale.
If the developer REALLY wants to throw a twist into the plot, it should turn out that Quinn and Tommy are actually FBI agents working undercover to take down Professor Burke.