I raised the issue of the high percentage of expelled instructors from Asia in a previous thread, and I got an interesting private message on the topic from someone claiming to be in the know. The explanation is instructive, because there is bound to be some truth to it, even in western countries.
The explanation was that if an instructor violates standards in that region, the liability falls on the instructor and not the shop that employed the instructor. What supposedly happens is that shop management routinely tells the instructors it employs to use procedures that violate standards. If nothing bad happens, no one is the wiser. If something bad happens, the instructor is blamed, and the shop hires a new instructor. No problem.
I am sure something like that happens around the world. When I was certified in Mexico, my pool session (only 2 people) was 2 hours long in a pool 5 feet deep. Many standards were skipped. I am sure that was not the instructor's decision. I am sure he would have gladly done a full session, but if he wanted to be employed, he had to do what his shop management said to do.
So the instructor who works for a shop has two sets of rules to follow--the agency standards and the conditions of his employment. What does someone trying to feed a family do when the two are in conflict?