Considering the alternative for them over the past millennia has been, inevitably that they get caught, hanged, quartered, beaten and other various violent methods: yes, they should smile, they're buying their lives with all that money :)
Extortion is the word that summarizes your point.
Just so you know, careers as a bootlicker are kind of a dead end.
Threatening violence to get what you want always ends with you being out-violenced by a bigger thug.
In humanity, being the alpha chimp, you can actually just run away from the tribe with all your wealth instead of outright die and form a new identity and start a life elsewhere and change your last name and go somewhere not well known, and if you and your family does this for enough generations you are forgotten.
I think this might explain the rotten apples at the tip-top of our industrial/societal wealth classes. I think they are these people, played out over generations, having somehow survived the system that used to make it impossible to do this when at the chimp level (or even medieval maybe, maybe this new form of evasion only arose in the industrial age).
And no, I do not believe that Musk's flabby arms or Bezos' shiny head are a threat of bigger violence to me anyways.