[pest]

In a competitive job market, theoritically, everyone is paid fairly. Otherwise, jobs that paid unfairly would go unfilled. Sure CEO's might make astronomical salaries, but very few others within that Corp. stand to lose their job if the stock price goes down $5. Convience store clerks might get paid next to nothing, but thats about how hte job requirements read too. And you rarely see a shortage of them.

Now, take two identical jobs - one pays well, the other sucks. Most people are going to try for the good paying one. Typically, the best qualified will get the better paying job. Too many qualified personell in a field, and the market is saturated, and people are willing to work for less. Its really supply and demand, just like any other market. The people that might truely get under paid, are the ones that do a job for the pure love of it, and not the money. But then again, does that satisfaction count as compensation too? In my opinion, yes, its just not monetary compensation and cant be measured quantitatively.

Of course this is all theoritical