Because you like Princess Zelda in The Legend of Zelda
It doesn't matter how noble or brave he is. Jon Snow is a bastard, and people don't let him forget it. See them in Game of Thrones.
James T. Kirk is more than ready to face the final frontier. See them in Star Trek.
Adored, honored, and, most of all, feared, Miranda Priestly has the fashion industry in the palm of her hand. See them in The Devil Wears Prada.
Bart Simpson is an aspiring juvenile delinquent who doesn't want you to have a cow, man! See them in The Simpsons.
All it takes to change the course of history is the will of a single man called John Price. See them in Call of Duty Series.
Mr. Blonde is the undisputed leader of his pack of suited-up outlaws, with a stoic and serious demeanor, and a penchant for bloodshed. See them in Reservoir Dogs.
Melinda May is a woman of few words and many talents. Most of them martial. See them in Marvel Cinematic Universe.
Shaun is used to being lazy. And now, you're asking him to fight for his life? See them in Shaun of the Dead.