I dunno. Go anywhere in the world and look at how billionaires and Presidents get around. Do they catch buses or do they choose to get around in private, possibly chauffeured, vehicles?
(Let me just pre-empt someone's example of some billionaire somewhere who loves catching buses, I'm sure there's one out there somewhere.)
Frankly who cares how Presidents and billionaires get around? It's entirely irrelevant to your unsubstantiated claim that "public transport is intrinsically a worse and less convenient experience than having a private driver."
For what it's worth, the Dutch Prime Minister Mark Rutte cycles to work just like most everyone else in the Netherlands.
Netherlands, of course, being an example of a place having public transport which is exceptionally good and quite often more convenient and more practical than having a private chauffer.
(Let me just pre-empt someone's example of some billionaire somewhere who loves catching buses, I'm sure there's one out there somewhere.)