Because you like Mrs. Whatsit in A Wrinkle in Time

A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.

His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.

Hell hath no fury like an evil fairy scorned. See them in Maleficent.