I usually bring in roughly £1 million / year in research funds to my university. That's direct money assigned for me to spend.

If one also considers tuition paid by students in the programme divided by the total number of faculty (that's another £200,000).

So, I bring in £1.2 million / year to the university and will bring that every year until I retire (roughly £50 million or so over my career). Hopefully more, but maybe not.

I don't make £1 million / year in salary.

I don't even make 10% of that.