Because I am a self-employed consultant, this question is hard to answer. First of all, my earnings vary with the contracts that I get – but this might typically give an income of about £150,000 / year. This looks like an awful lot, but I then need to pay all the costs normally covered by an employer (pension, health insurance…) and also travel costs. In normal times (before COVID), I travel to Japan maybe 4 or 5 times a year and work there for maybe 10 or 12 weeks, which is very expensive. Even then, this gives me a high salary compared to the UK: however Switzerland is ranked as the second most expensive country in the world to live in. So I am well paid but, by Swiss standards, not very rich.
My salary is about £35000/year but I live in Yorkshire so it is more than enough for my utility bills, savings and financing my various trips around the globe. It will be more in the near future, I have faith ;).