You don't always have to be poor to get a scholarship. There are merit-based scholarships which Greg being a brain could have very well had.
It is true we really do not know what drives Greg besides just the excitement of the job. But now that he has seen so many horrible things and seeing himself and his friends be victims, he has to be driven for other reasons because I can't see excitement being one of them after all of this anymore. Maybe it is just helping catch the bad guys. I really hope after all this Grissom stuff is over with this coming season, they focus more on the remaining original characters and develop them a bit more.
It is true we really do not know what drives Greg besides just the excitement of the job. But now that he has seen so many horrible things and seeing himself and his friends be victims, he has to be driven for other reasons because I can't see excitement being one of them after all of this anymore. Maybe it is just helping catch the bad guys. I really hope after all this Grissom stuff is over with this coming season, they focus more on the remaining original characters and develop them a bit more.