Terra's entire thing when he visits Olympus (of the Disney's Hercules variety) in canon is that he perceives himself to be anything but a hero... But then he goes and winds up being hailed as a hero for fighting his way through the tournament and saving tinyZack from Hades. When he's surprised, he gets a lesson on how heroism is based more how people perceive him than how he sees himself. Feel free to run with that!