Just some statistics I googled up:

• In 2005, Exxon/Moble posted the highest profit ever for a US corporation. That operating profit amounted to more than $700,000 per employee of the company.
• Wal*Mart, the worlds largest employer, had an operating profit of nearly $15,000 per employee. That's more than the average cashier pulls down in a year.

Why are people in the middle or working class going nowhere while debts pile up? Why are the most fantastically wealthy pulling away from the just regular rich? Because massive corporate profits are being reaped at the expense of real wages. That's one big reason why.