All the great wuxia heroes ended up becoming extraordinary martial artists...ones who were so powerful in their fighting skills that few could challenge them. For them, it was not difficult to impose their will upon the evil and uphold justice.
Not everybody is blessed with super martial arts powers, however. Who in wuxia fiction represented the hero whose martial arts were not stellar, but was nonetheless so full of courage and compassion...so full of heart that he would fight a villain to the bitter end in the name of protecting the innocent and upholding justice even if he had next to no chance of beating the villain?