Of course, you could also ask the question of what a true king actually is, and what his role and responsibilities are. As you mentioned, those ideas and and social architecture are 5,000 years removed from us. And even back then, the concept of a "King" could have been corrupted form original intent when the Creator laid the foundations of the Universe. I'm not saying I disagree with what you have posted; I'm just pointing out that the concept of a proper King may fit more correctly into the paradigm you describe here.
Addendum:
The Bible says that we are ALL destined to be kings and priests:
And hath made us kings and priests unto God and his Father; to him be glory and dominion for ever and ever. Amen. (Rev-1:6)