Because you like Loretta Castorini in Moonstruck
He's an eccentric pirate making it up as he goes along. He's Jack Sparrow, savvy? See them in Pirates of the Caribbean: the Curse of the Black Pearl.
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.