Well, the following is just my opinion so please don't get me wrong, but from my understanding of the virtues I can only strongly advice against considering the 'violence' virtue being equal to 'physically AND mentally ready to slaughter everything' or the like.

Being capable of being physically violent doesn't necessarily mean that one's personality is eager to actually do that. I see much more in the violence virtue than fighting. What if we're confronted with some obstacle that needs to get shoved out of the way ? Or we have wounded that need to be carried along. Etc. etc. Actually the 'violence' in my character is meant more this way than the other. Otherwise I'd have given him the skill to go melee very effectively. It is meant more as an utility and emergency function :)