"I said do what I say, not do what I do."
Taking the Cavaliers not looting example, I see many possible nuances. Why is someone a cavalier? Amaury Capet didn't become one out of motives of honor, but because Cavaliers gain more recognition from battle, and because they can command more cavalry than other classes. The looting restriction in his case was an inconvenience, not a matter of personal conviction. He ordered lootings during the Lurian Civil War to cripple the enemy's economy through starvation, killing some 100,000 peasants in the process, and the reason he did not join in was not because he considered looting dishonorable, but because partaking as a Cavalier would look poorly in the eyes of his peers.
My biggest SMA-related annoyance is inconsistency in character behaviors. One week Sir Kepler will be a Champion of Virtue, the next week his men are seen raping and slaughtering defenseless peasants, that sort of thing. It's like everyone's a schizophrenic, bringing up the personality that best suits him that day and making a 180 degree the next day.