Did you do anything to try and constructively influence change? In my job I do get hounded and I have a number of ways of dealing with it Sorry, but that made me laugh...
That is simply impossible for any teacher to affect any changes, if the SLT aren't 100% behind you - and even then, maybe not!
Schools, indy or not, are simply not as other organisations. Neither the customer, the government, nor the organisation itself, thinks of a school as anything other that being there to do as it must to get results... above average results by government edict (think about it, and yes, sadly it is true).
As for teh hating rich parents, I could agrre, but would modify it to include any parent who uuters any sentence closely akin to "What are you going to do about it?" to the teacher at every opportunity but never to the student - whose failure is always the fault of the teacher.
If you have never said that, can't see why anyone would think it, lete alne say it, then much of OPs post will be utter anathema to you.
If you have you'll just think she is a whinging cow best off out of schools!
And yes, I am another that Goviot ministers and Idiot parents/students pushed out of a job I otherwise loved and was very good at!
I can' tnow imagine wha I put p with it for so long. Self emplyed ow and if someone pushes, I push back. Why? Because I finally have the same freedoms others take for granted!