I wonder why so many kings are needed for the millennial reign? The almighty governing body says 24,000,000,000 people combined from those resurrected and the survivors of the big 'A' could make it into paradise. That gives you 1 king for every 166,665 persons.
Imagine being a perfect spirit king, who probably never sleeps has perfect memory, wisdom, judgement, knowledge. Imagine him ruling with Jehovah's power and authority over near perfect humans in a perfect world with perfect laws. Imagine his kingdom and subject's being the size of Huntsville Alabama.
I want that job! LOL