'In my own school ( and most I have taught in) teachers are paid within their contract to do these " after school " activities. Its part of their job description and ( in my school at least) they get time off and additional pay for the unsocial hours.'
OK, but you need to accept that this is exceptional. Honestly it is. Look at the other thread about extra-curricular activities. Look at job descriptions.
I have NEVER heard of a school that pays overtime full stop even though I know that some schools and LEAs may pay for specific activities.
'If that isnt reue elsewhere, then what happens when those good teachers are asked for more and more and eventually decide they dont want or cannot ( hours in the day) do it.'
I can only come back to the fact that most teachers WANT to contribute to the wider school community. Most teachers do not see their job as purely what happens in their classroom from 9-3pm.
At the moment I'm teaching extra sessions to help students who are re-sitting AS or A2 units. I'm doing this because I care about them and their results and their ability to get into their chosen universities and I care about my results as a HoD. Some of these students were unlucky 1st time around, some had harsh examiners, some weren't ready in terms of their maturity or approach and they need a bit of extra help.
'It seems some posters think that teachers are like monks or nuns and they do their work with total committment to the exclusion of all other life. Maybe some do.'
But it seems that you're the only teacher on here who feels like this.
I work very hard BUT I have a good salary, a final salary pension scheme and 13 weeks holiday a year. I do a job I love. Of course, sometimes I feel stressed and feel like I have too much to do but I do not feel 'abused' or hard done by.