For every job out there, there is someone willing to do it for a price. If the salary is not what you think you deserve, pass on it. Make yourself more marketable or try another market. None of us are enslaved. We are free to leave, unless we have local debts that prevent it.
Bottom line is.. as long as someone will accept less, they will be paid less. If the supply of labor dries up, the salaries will become better. Its simple supply and demand economics.