There are several mortal stunts that improve these tracks, but I think that leaving them mostly unchanged was intentional. Part of the point is that no matter how big and brawny you are, you can still be a coward or a wimp at heart. Mental and social toughness are incredibly hard to develop because of some supernatural power, so the notion of them being tied only to skills and stunts that represent you working on them, rather than simply being born that way, seems right to me.