If there were many companies offering the same pay, with a higher ratio of offerings to applicants than yes that would be applicable.
I'd your trying to say that they can sign away their rights than that is a different argument.
Pay and rights arnt/shouldnt be interchangeable, I'll work for you for X money but there isn't an amount that will make me give uo my rights.
Why? Well someone else will undercut that , and then they will be undercut and you eventually end up with no rights.