Men and women are not identical; inescapably, the mean value contributed by each will material differ in at least some contexts.
If a society equally values the contributions of men and women in all contexts, then, by definition, it must be using an inequitable metric to ascribe value to their contributions.
If a society equally values the contributions of men and women in all contexts, then, by definition, it must be using an inequitable metric to ascribe value to their contributions.