I would guess yes.
Private planes do sit unused but, if you use them frequently enough it starts to make sense to use especially since you can reliably get features that a charter plane doesn't like a tv, many people on the plane, places to sleep.
Also who wants to sit in a jet seat that someone else has sat in. Gross.
It's a finite world and we all share it. You're going to be drinking water someone else drank and breathing air someone else breathed. Cleaning is cheaper than making something unique to everyone of the eight billion people in the planet.
If everyone lived like spoiled billionaires the world would be a hell scape within a month, just based on air quality.
This is true of any capital asset. Broadly speaking, buying crap you don't need because you think it's a tax deal is a hobbyhorse of the middle class. Not the wealthy.