Not to mention that billionaires are fancy lads and lasses expecting to be waited on hand and foot. When their operations and Security people, people much more generally competent then them in every conceivable real world way, no longer has use for them or their paychecks, they will become their bunkers very, very quickly, especially because wealthy people don’t know how to share and will treat them as staff and not people, let alone friends.

I can’t imagine them finding security that meets their standards for employment that also lacks opportunism. You don’t agree to protect Bezos from the hoards of Bezos’ victims without being selfish to begin with.