I'm a pathologist and make much more per year than the quoted $75k, and I have to be honest, I don't feel particularly more proud or accomplished (life evaluation) than any of my lower income peers (and I do have them).
What I DO feel happier about is the fact that despite $100k in student loans (I paid dearly for my education and subsequent income potential), with my income I'll be able to pay that off, pay off my house, and save a nice little nest egg in just a few years (my goal is 4-6 years).
Once I've paid my house off and have a residual investment income of 20-30k per year (depending on my future badassity), it won't bother me at all that I'm no longer making the big bucks.
In fact, for my "life evaluation", I'll rate it much higher once I'm able to spend my day on my own schedule, concerned about my own interests instead of my employers', and even helping others out by volunteering/mentoring with my free time. I can't wait.