I've noticed a couple of other places where a Virtue change seems appropriate.
Regular game:
-Attempting to blackmail Stein (a graverobber).
-Refusing the Imnesvale kids a refund if you take their money and then refuse to buy them anything.
Mods:
-Selling out Kelsey (unless you've implemented this; I haven't checked).
-Killing Stacy at the bard competition. He might attack first, but you can choose to unequip your weapons and knock him out. Which is way funnier too. At any rate, killing a man for being a drunken hothead is certainly not virtuous.
-Demanding any cut of Surly's profits, instead of just for successfully convincing him to give you a share. If you demand half and he leaves, you should still take a hit.
Another spot where the Virtue ranking seemed erratic was ransoming Elgea (-2)and then opting to free her after all (+1). Can it be coded so you can't get a point for freeing her if you've considered ransoming her?
I also question the Virtue reward for dealing with the Fallen Paladins. A reputation point makes sense here, but you have to kill at least 5 men whose backgrounds you're not really familiar with to complete the quest. I'd say Virtue should not be affected by this quest.
I've also been thinking about Virtue for strongholds. It's obviously more applicable to some than others, but there are a few places that seem to be crying out for a Virtue change, particularly for the evil cleric. Again, I haven't tried one, so I don't know if something is already implemented. Thoughts?