The rest of what I filled in on my own is reality. The motivations you propose constitute a limited theory on how leaders of nations behave. Comparing your theory to thousands of years of actuality ought to cause a rational actor to conclude your theory is at best so incomplete as to be useless and at worst completely wrong.
You appear to have imagined that I suggested there is one and only one narrow motivation for Presidents/monarchists regarding their own personal wealth and that single narrow motivation would be the only thing impacting their behavior. I made no such suggestion. Therefore all of your extrapolations are invalid.
> Monarchy is superior to democracy in a very important way. When a monarch sends you off to die in war, the monarch is spending their own resources: you. And therefore the monarch's own wealth and power is at stake. In a democracy the president sends you off to die at no cost to themselves and only really strands to gain from the kickbacks.
This understanding is completely outside of actual reality. The statement "Monarchy is superior to democracy in a very important way" goes on to explain why you believe the monarch has a greater incentive to avoid wasting the lives of his citizens. This isn't even close to true. A monarch who loses 1% of his "wealth" in the form of dead people still has the other 99%. A President can lose his job, his wealth, and his personal power for less.
A president is incentivized not to put upon the people more than they can bear with the understanding that all they have to do to be rid of him is check a different box next go round. A monarch faces the same risk but only if the anguish of the people is enough for them to spend copious amounts of their own blood in violent revolution.
This difference in resistance is the dominant difference in motivation NOT a proprietary feeling towards a kings subjects. This is well born out by an ocean of blood spilled foolishly by monarchies through history. I don't misunderstand you. I don't think you have properly understood history.