Gaba, I've got it in the neck for suggesting people on £80k a year shouldn't really feel poor, given the national median salary, but actually I don't think you're right about international job markets.
One of my DS' godparents is about to move to Texas for work for a few years. Of my friends from school and uni, 1 is in Panama, 8 are in the USA, 7 are in Australia and New Zealand, 2 in South Africa, 2 in Oman,1 in the Cayman Islands, 1 in Canada, and 4 in the European Union. All are professionals who have moved for quality of life reasons (which would include pay), with the exception of the guy in Panama who works for the Foreign Office so admittedly can be sent anywhere, or indeed recalled. And while there are accountants, entertainment industry workers and management accountants in that mix (alongside academics whose work is necessarily international) they also include teachers, engineers and an A & E registrar, none of whom we can easily afford to lose from the national workforce - especially the A & E doctor. And I'm not sure the national solution of poaching key workers from the developing world, to plug those gaps, is exactly fair on those developing nations either. I don't really have a solution, but it is a real problem. It's a far more international world than you seem to realise, for English speakers with good qualifications.
And with the best will in the world, it's rather narcissistic to imagine anyone is at all interested in what you do for a living, surely?