There is also a difference in personality; nobility is taught to be arrogant and expected to achieve their will by any means required. I know nobles are not all powerful, but its exactly that weakness that lets me expect people of that kind of react in the typical manner of small-minded god complex persona; with rage and violence. A noble may not be all powerful, but even the most pathetic had some measure of authority, therefore its a firm possibility.
So you are saying there was a possibility of your lord killing you, so you had to be stupid to be okay with them ruling over you?
I believe my government is totally capable of killing me, and I believe there are some situations where they will do it. That does not mean I will start claiming that having elected rulers is a bad idea.
I agree that arrogance is one of the dangers of hereditary nobility. The again, I believe it is a danger of any position of power.
A noble can become arrogant because he was born superior, while an elected leader can become arrogant because he was chosen as the best man for the job. And once they are in power, they will be both accustomed to have people serving them.
Overall however, I would agree that arrogance is a problem with a feudal system. However, this is not enough to convince me of the inherent stupidity of such a system; While it certainly has disadvantages, it also has advantages.
One of the very important advantages of a hereditary system is the concept of posterity.
No one wants to leave a ruined fief to their son, so they have more incentive to work hard and be a good ruler. In modern republics, they have a fixed salary, and whether or not they do their job well has little impact o their lives. It is therefore much easier to succumb to corruption for personal gain.
This does not mean no medieval nobles were corrupt, but they had a concept of stability to let their dynasty last for generation that we simply don't have anymore. Who care if in ten years people realize the bill I passed had some disastrous consequences? Its not my problem anymore.
As for the quip about real world villages being burned for such petty reasons, I'll concede your point here. However, aren't we talking fantasy?
Weren't you the one saying you were just being realistic?
Religion and nobility have always been at odds, the same way that nobles and merchants were. It was always a 3 way battlefield of power, a division of faith vs prestige vs wealth. Yes, not all nobles were horrible people, but that does not dissuade the fact that it was far easier to be a bad person than a good one.
Religion and nobility are not always at odds. They have been many conflicts between the two, but there has been even more periods of peace, where they worked together. In France, we even have a king called Saint Louis, ad he was our most well-liked king.
While it is true that they have often fought for power, it is my turn to ask what relevance this has to our conversation? It does not matter who had the temporary upper hand, in the end both the aristocratic laws and religious tenants would have been ingrained deep into their society.
I agree with your point on bureaucracy, though I don't see what it has to do with the conversation.
The point is, there are good points and bad points, it is not all black and white. Nowadays, we have much greater inequalities, but also have a lot of things in place to restrain our higher ups. Back in the day, the difference in power was not so massive, but there were less consequences to heinous actions you managed to commit. A few shocking examples is not enough to make a system have no value.
I am arguing that your thesis "There's no way that a regular human being with even a modicum of intellect would allow itself to be ruled over by 'nobility'." is a ridiculous statement, not that there are no flaws with a feudal system.
Honestly, I get the feeling you are against authoritative figures in general. As long as someone is in charge, he will have power over you, which can be misused. As a common man, you have very little power to defend yourself against the powerhouses of your society, no matter the era. I get that, but it is kind of inevitable.