damn... he actually still has a Heart and sane... not just a walking genocide of revenge
he knew that Revenge is for himself, not so-called 'justice'...
and his revenge is go those bitches and assholes out there, not the Kingdom itself...
he probably still sane enough to knew there's innocent people who has nothing to do with all that...
his sister would grieving in after life if what he do is for her, so he tell her (or more like telling himself) that all he do is for his own satisfaction...