No Albs, the upper limit is not 75k. After 6 years of med school (with a god knows how large student loan hanging over your head), 1 yr as a houseman, 3 years as a senior house officer, then 5 to 7 years of being a registrar, plus 2-3 yrs of research (optional, but most people do it). Thats 15 - 19 years of training to be a consultant. During these years you earn between 20 - 40k (slow increments to the top), plus a small supplement due to hours of being on call. Then you start at 75k. If you are willing to do more than the usual hours then you can get more, but who in their right minds wants to be taking on even more work in exchange for a hit on their family? So most people compromise and go for a fair amount of extra work and settle at about the 90k figure. But remember this carries with it a 40% tax and 11%NI, X% pension, professional indemnity insurance, royal college membership, specialty membership, journals and publication membership all of which costs significant amounts of money.
For eg: just one of the 5 journal/online databases I subscribe to is uptodate
https://www.uptodate.com/store. Have a look at the annual membership costs, yup $500, its not a mistake/typo.
I am not struggling to make ends meet, but I am not rolling in it either.
Surgeons make a good proportion more. Possibly due to private work, I am not exactly certain. But then you exchange your evenings and weekends for it. Its quality of life versus income.
GP's seem to make money disproportionate to levels of training, on calls and working hours. I am sure they would disagree, but they generally start at 100k+ easily. And I think this needs to be addressed.