I am going to stop there and address your "Top 4"
1. Radio stations are businesses. Their top goal is to make money. They can do nothing else, whether it is community work or charity or training of interns if they don't make money.
2. Narcissists are "people excessively concerned with personal appearance". Other than the old jokes about salesmen in plaid suits, this holds no water in my experience.
3. Radio is an entertainment service. Entertainers, and thus broadcasters, are ego driven. Ego makes us strive to be as good as we can and to win. In most situations, the proper amount of ego drive combined with business acumen is a very good thing.
3. The opposite of "perfect" is sloppy, imperfect, inferior. Why would one want defective products in their store?
The best PD I ever had came to me every week with about a dozen new ideas. I'd approve one or two. After many months of working together, he came to me, depressed, and said he though maybe I wanted him to resign as I did not approve many of his ideas. I explained that he was the listeners' advocate and I was the owners' advocate. Some of his ideas were too expensive. Some would require legal consultation or create borderline FCC rules issues. Others, I simply did not like. But at most stations, nobody was producing a couple of new ideas every few months, let alone every week. He understood that we were working as a team, and continued to bring loads of ideas, which I filtered. We went from last to #1 in 6 months (in what is now market #14) because I did not accept 80% to 90% of the ideas, and knew which ones to focus on.
Radio managers are not "elected" like politicians. They are dictators, with absolute power. And some of us do not suffer fools gladly.
Everything you find negative is either not factual ("narcissim") or actually a key part in being a good radio manager.
I'd expect total dedication from the person selected to be the steward of a valuable business. As to expecting others to put in a full measure of commitment, I see nothing wrong. As to the pay scale, every business works under the conditions of supply and demand. It is easier to find a board op than a truly good manager. No different than baseball players or musicians or artists... the ones with the special skills get rewarded.
They value profits over bankruptcy.
But you will also find that the truly talented at all levels end up, at most stations, getting along just fine with the manager.
Yes, with thousands of smaller owner-operator stations you have everything from brilliance to nutcases. But a staffer who delivers will generally get along just fine with a demanding manager who sets a high standard.
Whiners and complainers and Monday morning quarterbacks generally have to put up or shut up. They are divisive and a waste of time.