Their characters and influence system could use some work. Khelgar is NG or is it CG? Well he's good and he should complain if you do evil deeds like I did with the Caretaker. I chose the dialogue option to kill him to take his veil and Khelgar said/did nothing. I should have lost influence with him at least, didn't happen. The only thing he complains so far is if Neeshka steals something. What's a far worse crime, stealing or murder?
Another thing is that paladin in your group. Why on earth would he want to join a group lead by a drow, much less let her live? He should have attacked my character on sight since it is known/stereotyped that all drow are evil murdering killers.