Nice perspective. I don’t think modern people are aware of the code of knightly chivalry (Geoffrey de Charny).
Another example was King John. Many modern historians are somewhat flummoxed by the great hatred for him among Englishmen of the time.
By modern standards he was a pretty good medieval King. Hard-working, reformist, etc.
But by the standards of the time he was the worst of all English kings. He didn’t really do a great deal that his father and brother hadn’t done, but the way he went about things was seen as dishonorable.
He provoked his barons to demand Magna Carta, and eventually to revolt and call in the French King’s son to replace him, obviously not something English barons would do except under extreme provocation. The French/English coalition was in the process of winning when John suddenly died, leaving his nine-year old son as heir.
Once John the dishonorable was gone, support for the French claimant evaporated, and he was pretty quickly chased out of England. The obviously weak reign of a young boy was seen as infinitely preferable to the strong but dishonorable rule of his father.