Yes, people are generally delusional; importantly though, some people are much less so (and some more so). Being connected to reality, being grounded, are learnable traits (but not very valuable to CEOs and narcissists).
> They are roughly as delusional as everyone else.
I would bet serious money that people who believe in Ayn Rand are generally more delusional than others, and the same goes for the ultra-wealthy living in a bubble of sycophants.
And their wealth gives them much more capacity - and motive - to cause damage.