look to windward i was the one who made the comments you refer to, and like your husband, i also entered teaching after other jobs/careers.
my point was, that my dad, who was a director of a large insurance co., was in charge of the 'typing pool' of 200 people. (among other things) he didn't have half the answering back, sickness rates, parents complaining etc.
what makes me question the pay element was when one head teacher i worked for listed the number of staff she was responsible for, the pupils, as well as the budget she juggled. compared with the same number of staff, 'clients', and budget of someone running a private co. (with a board of directors above them) she was on peanuts. if you allowed for the extra holiday and job security, it STILL didn't equate to the same kind of pay in the private sector.
it's fair enough to question the pay, after all it is tax payers' money, but it still doesn't compare well with private employment. most teachers just accept this because they want to do their job.
there are some teachers working 13 hours a day who are incompetent, others just never know how to switch off. having one year had nothing but exam groups, in two essay subjects, i can say that the mark load for the final coursework (which for essay subjects ALL has to be annotated etc & can't be done before a certain date) was in excess of 150 hours. on top of my normal, full time teaching job. how was i supposed to work less hours? especially as ALL my classes were about to do GCSE or A Levels, so I had to have really 'on the ball' revision lessons.
i think it can vary depending on the school - having worked in one place where we were understaffed, i used to have to set lessons for 5 extra classes as well as my own. i've also worked in inner city schools, where every day the paperwork & meetings to deal with problems would take up at least 2 hours after school, and resources had to be prepared almost for each individual, where pupils were hugely abusive (and abused, often).
a fully staffed school with less behaviour issues require a lot less time input.