You are absolutely right. I never understood this idea that 'women should be equal to men in everything'. Outside of pure logical/scientific thinking it simply won't happen. Some societies are more accepting of the idea, while others sacrifice common sense in the altar of political correctness.
(Quality not as in better, but as in "different" [dict] character or nature, as belonging to or distinguishing a thing).
For example: http://www.plosone.org/article/info:doi/10.1371/journal.pone...