Except they are as well, due to the volume of flights.
> If a billionare would use regular airplanes he would waste tons of his time.
Just like the rest of us.
> You want eg Elon Musk to waste a few weeks of his life each year waiting for a plane when he could be building stuff?
Yes. He does not build stuff, he pays people to build stuff.
Is this you, Elon?