The key word is ‘some.’
Out the total number, maybe 5 percent are outstanding. The next 25 percent are cheap, compliant labor. The remainder... you could replace them with Howard, Fine, & Howard. The Stooges would do a better job.
Do you work in hi-tech?
Have you ever interviewed candidates for hi-tech positions?
Equal pay for equal work is not only the prevailing corporate policy, but it is also required for govt contracts.