Did you miss that his Lightwarden name was Innocence? the whole point of Vauthry was the idea of nurture over nature. Emet made him a monster from birth. He never had a choice or a chance at a real life. It was stolen from him before he took his first breath. You aren't meant to like him but he's pretty clearly intended to be a counterpoint to Zenos where one was made a monster and the other chose to become one.