Jabed, unless you misunderstood my post I am beginning to wonder whether you're slightly deranged.
Perhaps I didn't explain myself clearly.
It is not unusual for teachers in private schools to earn less than their state school equivalents. It's hard to get accurate figures because they operate their own pay scales and because averages mask big discrepancies. So, whereas some schools such as Eton may pay considerably more, some schools, particularly smaller schools may well pay less. I'll find some evidence in a minute.
As for working additional hours without being paid for those, surely you understand that most teachers do at least some of this regardless of whether they work in private schools or state schools? Marking comes under this category as well as preparation as well as one to one work to support students. As I've said I have been paid to do summer schools and coursework catch up days by LEAs rather than individual insitituions as it happens but, like most teachers, I have also done lots and lots of extra-curricular activitiies and work which did not count as part of my directed time and for which therefore I received no additional payment over the years. This has included:
a lunchtime club for ESOL students
a mock trial
theatre trips
a debating society
a reading club
preparing assemblies
a poetry competition
taking students to parliament for a mock debate
countless hours working with small groups or individual students to support them with coursework and revision
etc
In most schools at least some teachers contribute to extra-curricular provision. As a parent, this is one thing that I looked for in a school and I would be concerned if there was no extra curricular provision.
The extra-curricular provision of private schools is often a particular draw and is quite often superior to that of local state schools so my dcs school has many sports clubs, chess, speech and drama, craft etc etc. There is therefore v often a clear expectation that teachers will contribute to this provision.
This is especially true of PE teachers where to be able to compete nationally they need to give up many evenings and often at least part of their weekends. Again, this is not unusual. I know this because my dcs' school competes in national events for both private schools only and all schools. Obviously there have to be other schools for them to compete against!!!! And all the big names are there.
In fact, though extra curricular activity is also this expectation in many state schools and it was certainly a question asked of me at interview at my current college and at my last 2 jobs somehting along the lines of 'What can you offer to the school community as a whole/ as an enrichment activity to our students?'
I am amazed that you object to being expected to contribute to extra curricular activities but I am absolutely astounded that you consider this to be 'abuse'. Of all the weird and wonderful things I've read on Mumsnet this is possibly the strangest.
I might add that teachers often take pride in their contribution to their schools outside of their own classrooms. For a PE teacher winning a major tournament is a great thing. For me, having my school win a mock trial was great.
So, I have suggested 2 things which might be considered disadvantages to working in the private sector or at least SOME private schools including the one my dcs are fortunate enough to attned. However, there are compensations. It is typical for private schools to have longer holidays. In the case of my dcs' school they get an additional 3 weeks during the year. They generally have smaller class sizes. They generally, as you yourself have pointed out, have pupils with supportive and aspirational parents.
Teachers are capable of making their own mind about where they work based on a whole range of factors and it seems fair to assume that the teachers who have applied to work in a private school and stay there are happy that the advantages outweigh the disadvantages. They understand that independent schools operate their own pay scales and it is up to them whether they are happy with the salaries being offered all things considered.
In fact, my dcs' school has a very low staff turnaround. I know some of the teachers there personally and they would find your perception that they are 'abused' bizarre.
So, I can only think that either you have misunderstood my previous posts of that you see teaching purely in terms of financial reward and as going in and doing your job and then leaving and feel put upon if required to do anyhting else. And TBH I'm concerned from other things that you've said that it's the latter. In which case I really think you chose the wrong job.
You also said,
'and yet you say that you have always been apid in the state sector but expect that teachers in independent schools should not be paid properly?)'
which is really very odd as I have never suggested or thought for a second that any teacher should 'not be paid properly' and I certainyl don't know any teachers who fall into this category.