I have read this thread with interest.
Firstly, lets get one thing straight. YES the Netjets companies are all run by different management. HOWEVER, they are all under the same umbrella and ultimately governed by Mr Santuli and Mr Buffett.
They have some say in everything which goes on in NJE and NJME, otherwise the company would not be able to use the Netjets name! A bit like a franchise I suppose.
There are two sides to any coin, ie many cases of staff being treated badly,
and there are also loads where they are VERY well looked after.
NJE contracts and terms of employment are decided without Union intervention/negotiation, so until such a time that the staff have a voice through a Union these things will always go on.
Good luck to the pilot concerned, I hope he recovers soon and gets what he is entitled to.