Aren't bank teller wages determined by the market? I don't see how they are underpaid if their salaries are market driven. Edit: Strange. Getting some down

Aren't bank teller wages determined by the market? I don't see how they are underpaid if their salaries are market driven. Edit: Strange. Getting some down votes. Is it because bank teller wages are not market driven or is it pointing out that fact is discouraged on this site.