The monster said that there is not always a good guy. Maybe he said this because nobody is perfect and their intentions aren’t actually the good choice. Maybe the monster wanted him to have the story so he could do what he wants with what he heard. Maybe the monster has a specific intention to help itself instead of having Conor be helped in his sad life. Maybe the monster will use Conor as his puppet. Stories can be used to do more than just teach lessons, they can twist others into doing something they wouldn’t really do. The monster could be using him.