The price of avoiding TSA pawing over your person and all of your stuff is just one benefit. I would also expect to be able to fly between smaller regional airports which can save a lot of ground commute time if your business has you out a distance from major metro areas.
Most of the business trips I have been on it was more time (as well as cost) effective for me to get a car and drive the whole 8-10 hours than to drive to the airport, catch a commercial plane (be at the airport at least an hour ahead for my TSA gropes), pick up a rental car on arrival then drive the rest of the way. For the high power executive the private jet would get them there, let them get business done and be back again in the time any other option would take just to get them there.