I'm not sure what you mean when you talk about the EFL pie. You're definitely philosophying. But I'm not. No need to explain it!
I would say that living in a cheating society does erode one's morals to some extent. But I can accept that in my case. Some of us always follow our nature in any case, even when it's not good for us to do so. No doubt you know the story of the scorpion and the frog. Halfway across the river the scorpion, on the frog's back, stings his carrier. Both will drown. The frog had trusted the scorpion, and can't understand why the scorpion had stung him. The scorpion replied that it was his nature. You can live by your morals and so will everyone else. But our morals differ. I think I have better morals than many Chinese, but probably you have better morals than me.
I'm not in China to fly the flag of Western culture. In fact, I dislike British culture. And I would surely dislike US culture too, were I to visit your country.

I care not what kind of cheating other FTs do here. All I can say is that I dislike telling lies, though I will do so to achieve my aims. I avoid FTs who come across as grovelling weasels here. I'm happy with my life, and I do not like the bickering and insults that I read on here. I do not wish to participate in lengthy debates. I'll give my take on a subject. If it offends others, that's too bad. I didn't mean it to.

Now, please tell us from your EFL experience abroad, which other foreign country can provide an expat with rent-free unshared accommodation and a salary approx double what its native English teachers earn for around 16 classes/week of 45 minutes each, a salary that allows one to buy beer in quantity, smoke and eat reasonably well. And you also get benefits such as air fare allowance or even air fare reimbursement, plus holiday travel allowance and the services of a native teaching assistant to help you plan your one and only lesson/week, help you teach it 16 times/week by interpreting for you in class, maintaining discipline there, and help you with any daily life problems you will have such as buying necessities.
I RECKON YOU CAN"T NAME ANYWHERE EXCEPT THE PRC! Now, I'm asking you this not for my sake, but on behalf of others who would be eager to accept this kind of deal outside China. My priorities are different from yours, as are those of at least some of the other readers.

I know China has its problems for expat teachers, but I can deal with my problems in this respect here reasonably well. However, I realize that there are many expat teachers who can't. The advantages of teaching here far outweigh the disadvantages in my opinion, but I realize I'm in the minority as regards my opinion. By nature, I'm a loner, an only child whose mother was German. China gives me what I want, and more. But I know it won't give many other Westerners what they want.