Hi Alex,
Perhaps poor old Paul is being blamed excessively for most foreign teachers having left the company as soon as they were able to.But perhaps not - I was told by a couple of foreign teachers who'd taught there for a long time that Paul used to participate in the negotiations when newbies were offered their contracts,during which time he went out of his way to make them accept a lowish salary from the company.
What you say about the way the company expects foreign teachers to behave,I'd go along with.But I'd say there are many other educational establishments in the PRC whose promoted Chinese staff have similar attitudes.They expect foreign teachers to adhere to the saying,when in Rome do as the Romans do,and just teach the English in the textbook as opposed to Western ideas that are alien to traditional Chinese customs and culture.So many forein teachers feel their freedom of speech and other freedoms are being compromised,and therefore depart for their homelands asap.And it's also true that by and large foreign teachers are treated just as badly,if not a little worse than their Chinese colleagues, by school bosses.
The situation might well be better if the waiban had been abroad for a spell in order to experience Western customs and culture firsthand,allowing him(or her) to realise what kind of behavior infuriates foreigners.Maybe Paul was/is not the best choice for the role of waiban for the company,a difficult one for a foreigner to take.