SOP isn't an angel, but Palmer isn't a saint either. The only fortunate thing for Carson was that he had enough money to retire on that some of us on here can only dream about. Could anybody here imagine what would happen if we did a similar situation to Carson in real life?
As was mentioned though, Palmer accomplished more by quitting. The Bengals have a young QB who unlike Palmer can manage an offense, an innovative offensive coordinator, cutting loose a primadonna wide receiver, and potentially two first round picks (one guaratneed).