Just for fun I wondered what a missed $10k/yr was over time.
http://www.moneychimp.com/calculator/compound_interest_calcu...
values of 0; 10,000; 20; 4; results in nearly 310k of missed gains.
Increasing that 4% to 8% increases it to nearly a half a million!
At my estimated retirement income requirements, that basically means I could quit working 10 years earlier if I don't settle for being underpaid.