Exactly, and it's difficult to prosecute (and prove) the implicit without making a process of intention (or building conspiration theory cases).

I'm quite curious about equal-pay legislation. I wonder how it was taylored, to allow women the right remuneration for their work, competence and responsibility, all in the business and market context, while not falling into egalitarianism and making men feel discriminated.

As to managers, my point was that discrimination is not always a voluntary, malicious act of pure ill will. There are the intolerant, and those worried about the business, I wonder how the right provisions can be made to distinguish the bad sheep from the rest (unless we assume all managers are intolerant).
So, with the best intentions, we'll just cut the gordian knot with a progressive activist law - except that laws are supposed to be precise, impartial and fair, not activist, educational, or cultural.
One more example about gender quota in France: parties being heavily fined if not presenting enough women candidates,  before the last elections they were making near desperate attempts to fill in the empty cases. Now I don't say that women don't feel attracted to politics (although it doesn't sound completely ansurd - men too begin to look quite discriminated in fields like teaching, medicine, or law, btw).
But in that particular case, all pretention of exigence has been abandoned, because the fine is something very real and quite painful.

Free at last! Free at last! Thank God Almighty, we are free at last! (Martin Luther King)