At my school it is the same. The owners will sacrifice those kids who at least try to those who do not give a damn and do all they can to disrupt everything.
But maybe it is just location. I have been told by teachers either currently in or who have taught in Taipei that tomfoolery is not tolerated.
I have seen my teacher/parent communications edited for me. In fact I have been told not to put anything negative on the communication and not to check individual answers on tests, only to give a passing score. Even on level up tests. I have heard the minimum score is 80%, and every student must be given that score. No matter what. As a result, there are kids who have been through several semesters at this school who know maybe 10 words in English and use only one.
I have not, but my assistant has been told by students that their parents pay money and they can do what they please and nothing we can do about it. The owners do not have our backs on this and any attempt to try and correct the issue will only get shot down. And then the owners blame the lack of real progress on the teachers. But this has a cute way of backfiring.
Once the company was sitting in on one of my classes, and watching me through the cameras, and wrote that I was doing fine. The owners balked, and the company rep stuck to their guns and stated in Chinese, in front of the parents, that the teachers were doing their jobs, maybe it was the students. Since then, the teachers have been forbidden to speak to the company without a manager present.
To me this seems that the parents are getting ripped off. But I do not think they care (the parents). They need a place to dump their kids after school, so, just cringe and take in the back side. Which they in turn make the owners take it, who make the teachers take it.
One of the scofflaws in my class, his mother is intent he goes to an Ivy league school in America. I laughed so hard I started crying. He is 12, so I put up a bunch of math that he should know at that age and given that Taiwan seems to out score American kids on these math tests, he could not do it. Simple math fractions, very basic algebra and geometry. He could not do it. Even the Chinese speaking assistant could not get him to do it. I am still laughing.
Its in my contract not to use recording devices, and while I judge the validity of the contract, its best to keep my nose clean.