I generally tend to agree. That being said, just because an ideal is semi-fictionalized or at least highly romanticized in the literal sense doesn’t mean it can’t be simultaneously “true” in the personal sense.
If a person draws a deeper sense of meaning and purpose from striving to adhere to an ideal, that ideal has value even if it never truly existed in the historical sense. Very much like the way in which some martial arts practitioners (myself included) value a version of the ideals of Bushido and are better people for it despite the historucal fact that whatever else the Samurai were, they were almost incomprehensibly brutal and rigidly classist.
Accuracy is not always the same as truth.
Each day I strap on literal armour, a weapon on my right hip and a tiny symbolic shield on my left. To me this is a powerful, deliberate and very poignant allusion to the knights of old (even if they never existed in they way I would like to imagine). The symbol still has power and I carry it with me in my mind as I go out to preserve the peace and protect the weak and serve as best I can in accordance with the oath I swore. This means something to me.
Police haters may flame on.