Hey, someone maintains all those private jets.
I don't mean gets the contract, but checks the lines, the tires, the fluids, does the inspections and servicing required to certify airworthiness, etc.
If all the people who keep things running decided to take a week off, then what?
Truck drivers alone, longshoremen, and the railroads would bring everything to a halt, especially with 'on time' inventories.