I guess it depends on how you go about it. If you needed 100 programmers, and there were exactly 100 programmers available, but 80 were men and 20 were women - but you insisted on equality of outcome, you'd hire 50 of the male programmers, all 20 of the female programmers, and be 30 programmers short, even though there were 30 perfectly capable programmers that would upset your gender ratio.