I think you've missed my point.
Many of the older RPGers who post on these boards remember, and admire, Boorman's film Excalibur. It's a wonderful filmic retelling of the Arthur story. A key motif in the film is "the King and the Land are one".
I don't think anyone who watches and enjoys that film, or who enjoys the near-identical trope in LotR, really believes in the theory of government that is being advocated. They are suspending their real political commitments and moral values to enjoy a romantic fantasy story, which works within a different value system.
The same thing happens when I watch an X-Men film or read an X-Men comic, and don't judge Storm for her failure to use her weather powers to relieve drought and famine. These are works of fiction.
To what extent they are purely escapist fiction, and to what extent they have something to say about the real world, is a further question. I think it is one we can set aside in this thread. The key point for this thread is that thinking onself into the Arthur story - a celebration of righteous kingship manifested through the pursuit of lethal violence - is no more or less absurd than thinking onself into a story about divine punishment inflicted on a people for its sin of pride.
These are all fictions, not documentaries and not treatises on actual moral conduct.