Because planes that aren’t moving aren’t generating money. And airlines inherently are NOT catering to the Uber rich. The Uber rich have their OWN planes and jets.
A trucking company by comparison has much more to lose if something doesn’t ship on time, especially if contracted with high value or time sensitive goods.
One time my girlfriend floated the idea of “bee play” with me, and I kept telling her it was a bad idea because realistically I didn’t want to have to lay there pretending to be dead after putting it in once.