If evil exists, it either is or its primary symptom is a cancerous development of the self. A calcification of the difference between the me and everyone and everything else.
This is likely why sports, art, and joy are so powerful. In the moment a sports team wins, we lose the self in joy. In appreciating a book or song, we lose the self. Joy is a feeling utterly separate from being a self.
That’s why fiction and creative fantasy is inherently a good thing. When something doesn’t exist and the reader enjoys it, the reader becomes that selfless, open entity for just a moment, and erodes natural walls. The calcification of the self dissolves. Joy returns.