That was not part of the original argument so is a moot point.
But the mechanic also does not pay the high annual fees for licensing within his municpality. Or for permits to do a brake job.
No, you are referring to specialists (and at the rates you quote here VERY specialized fields like neuro surgeon, heart surgeon, etc)
the quote listed 2.5 hours labor as PART of the job, if it was not included the charge should be adjusted.
And what actually ends up in the mechanics pocket was not the question (or discussion). Do you think when you pay a PC Tech, programmer, plumber, electrician, doctor, lawyer or any other professional an hourly rate it ALL goes to their pocket? Certainly doesn't...every business has overhead.