Zuckerberg will pay his burly security force by providing a better future for the security force’s family. Like fresh water and golf courses. Security forces will not leave the compound at the end of their shift-they will live there with their families.
(Edit fixed a typo in a word. Sorry I am on mobile)
Well, I am not an expert in governance. I just offered an example to how security forces would be compensated when there is no currency. One could imagine multiple layers of security forces... or some resources under the direct control of Zuckerberg and his direct reports, etc.... Granted, it would be a more dangerous and less fun world for Zuckerberg to live in, but I answered a hypothetical question.
(Edit fixed a typo in a word. Sorry I am on mobile)