This Joker quote is one of the most chilling of The Dark ... this is hinted at several times when the Joker references the origin of his facial scars. The version of the story that he tells ...
The Joker's scars in an Earth-3 origin story turned him into a hero, inspired by humiliating Owlman. Owlman scars Jokester after being mocked, inadvertently creating a hero instead of a villain.