Assuming...
Bob and Martha grew up on the same street, with a similar home life and parents of equal income. They also attended the same schools, until High School, where Bob decided to run away and join the circus. Martha graduated high school and then invested in her future by attending college and graduates with the debt that is frequently accrued over 4 years of higher education.
It is now 5 years later. Bob is making his 100, Martha her 1000, and they live in the town they grew up in (your cost of living scenario).
Sounds perfectly fair to me... unless Bob did go to college, in which case he probably shouldn't have majored in Comparative Lit.