I don't see much correlation as to why were you not accepted in the INtl schools you applied for just for the reason of being @ Huijia. That would make the ppl whom you had an interview with illogical. Did they check how good or authentic (my bad) your credentials are? are they too good to be true?...maybe you're overqualified to the position you applied for, you should have kept your PhD. Again, it doesn't make any sense, simply non-contingent.
Like you, I'm a certified subject teacher too in the US and been teaching for 15 years and also @ different international schools. My worst was in beijing central (all out in advertisements rite now) sometimes 12 years ago(I even filed a complaint before I left for the US to teach). Like any other schools, they have ups and downs, nothing is perfect. My Huijia exp are not as what I wish to be, but generally I say, it's fine. It's a good break from the stress I developed from teaching in one of the "AT RISK" public school in the US, guarded by police and doors with metal detectors(soon xrays like the TWA). No dull moments during my stay there, two teacher deaths-one was shot by a gang inside the school and the other one by heart attack. For me Huijia is a breather, I dont care if i earned a lot less than that I was used too, I just need a break and I'm happy I have great students who listens and never rough-house, talk-back and nver threat you with a lawsuit.
Finally, if you think you been aggrieved like some in here, why you all don't sue the school? try settling your arguments in the bar of law, your's could be a precedence and could be a landmark case in china on "night flight schools". My -jiao.