[CodeBrad]

You get what you pay for.

If there is a one off person who can command a higher salary, its unlikely they alone will make a huge difference to the company anyway.

If there are a lot of people who could command a higher salary in that role, the pay is too low.

Overall it seems like a pretty good system. You could argue that the current system favors people who are good at negotiating, and not necessarily more skilled workers.