Earlier quoted context omitted.
So that they get to screw over people who don't know what they are actually worth. Sorry about the relatively-crude language, but I don't know of a better way to put it that's still succinct.
No need to apologise - it's a perfectly justified way of putting it. Could be considered a cynical view, but justified still.
Also, note that employers are seldom as rushed to find an employee as an employee is to find an employer.