Nobody likes a perfect character. Someone who is super good at everything and gets everything right is annoying.
Even the most suave secret agents of indestructible superheroes need to make mistakes in order to make the story interesting.
There are two parts to using wrongness in a story. There’s the actual mistake (which sometimes isn’t known to be a mistake at the time), and there’s the consequences of the mistake, usually forcing the character to deal with powerful feeling of guilt or regret.