My brother is a deputy head of department in IT (not education, NW England), 3 years out of uni, and is on 75k. I'm about to hit UPS3 which means the only way my pay can go up is by getting a Leadership job, which also comes with no fixed working hours and can be directed to work during holidays. And even THEN it wouldn't be close to 75k. Our entire science and 3/4 of our MFL department have handed their notice in because they've found higher paying salaries within private companies that want their STEM/language skills. So really we want to be paying teachers MORE than 'other sectors' if we wait to retain good teachers.
The thing is, it doesn't matter what the salary is, if it's not competitive, then you have to pay more. My plumber is on more than me and if I have to call him out on a weekend, I get charged extra. Can you imagine if I started billing parents for having to mark their child's assessments on a Sunday? Can you imagine if midway through a meeting with a worried parent, I got up and told them i was off because I had completed my 37.5 hours for the week (which many friends in the corporate sector brag about doing during their meetings)? Or if I was sick didn't leave anything for my classes to be getting on with? If I told my plumber, you've got to work X hours overtime but I'm not paying you extra, I would have no plumber.
We've had a massive shift, not just in teaching, after covid. The workload had increased, the pressure has increased, and behaviour has become worse. People are recognising that teaching is just a job and their families and their mental health come first. You can't compare it to other jobs in other sectors if they are not struggling to recruit and retain to the same extent teaching is.