It is a myth that senior people suffer most stress. It's people on the factory production line with no control over their hours that have worst mental health. My sister (a clinical psychologist) was saying she has quite a few middle management patients at the moment, set impossible targets, working very long hours etc. People like me, people like her (she works for myself), my brother even (NHS consultant) - we control our hours to some extent. We aren't as stressed.
In fact one element of my career advice to the 5 children is - first choose work you'll adore doing which luckily I've managed but secondly try to pick something with the chance to work for yourself if you choose to do that (as I did, as my sister did when she had children as even my father did to some extent and entirely after he retired from the NHS).
As for who is worth what - where applicants are ten a penny and just about anyone can do the job wages are lower is a reasonable general rule. There genuinely aren't that many people in the UK who can do what I do. It's one reason I'm reasonably well paid. Other jobs that is not so.
As for whether we could all become hookers.... I know (not in the biblical sense) someone who uses a particular kind of prostitute to service his particular needs. She charges what I do per hour which is amusing. I assume she does not pay tax however.
What are we worth in financial times is the interesting question. Whatever the market will bear I suppose.
None of this changes my view that tax is too high but I'm still pleased we aren't in the tax regime we were under when I was a child - my father paying 66% (and 80 something % on savings income). Bring tax down, have a flat tax, be Estonian or Bulgarian and you might increase the tax take and people my choose to work harder if every extra hour you keep 90% of what you earn not 59%.
I also think mothers have a good role to play in telling girls what jobs are out there - that daughter might have one life if she earns £20k a year and another if she can aim for £500k a year, that we don't narrow girls' options (or even £600k a year if she marries a rich man and divorces him quickly).