Because you like Mark Zuckerberg in The Social Network
Brilliant, violent, and only a little insane, the Joker doesn't listen to anyone except the voices in his head. See them in DC Extended Universe.
Although Penny's friends have genius-level IQs, they regularly come to her for advice and insight. See them in The Big Bang Theory.
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
Dewey Finn will rock you. He feels rock and roll in his blood and guts. See them in School of Rock.
When he's not working as a detective, Lucifer is driving around in a black convertible or having one-night stands. See them in Lucifer.
Foggy Nelson is a principled small-time lawyer fighting for fellow little guys. See them in Marvel Cinematic Universe.
Driven by obsession and anxiety, Monk bravely overcomes, or at least battles, his fears to help the world. See them in Monk.
Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.
A brilliant intelligence officer, Eve Polastri seems more like Bridget Jones than James Bond. See them in Killing Eve.
Diana Prince is using a truth-telling lasso and super-strength to make Earth a little more like Paradise. See them in DC Extended Universe.
Ash Williams is a houseware clerk at S-Mart and the Chosen One. See them in The Evil Dead.