I think the moral that Japanese period films tend to show is that men are vain lustful selfish pigs that you should keep a ten yard stick away, and preferably shoot on sight. Often than not it's the result of the both local and central governments being totally incompetent, corrupt or inept, but given it's ruled by the same sorts of men, the conclusion is the same. They are not even trying to show it, it comes off like that incidentally or inadvertently.