To review, for women it's having and protecting offspring; for men it's sacrifice of body, soul, and mind (to his woman and presumably any offspring).
Most women would probably sacrifice the same for their children but might draw the line at her man. However a man probably places his wife and kids on the same plain and would sacrifice himself for any and all. This is consistent with the laws of the SMP which tell us that sperm is much cheaper than eggs. It's also consistent with what I mentioned earlier about how each sex's pupils dilate depending on the image they see.
Is one loftier than the other? I'm skeptical of that. If you were on the Titanic you'd be standing on the ship watching the women and children get into lifeboats and that would be the natural order of things.
You got it partly right, it's not just protecting as they might sacrifice an offspring to ensure her own survival when it's in doubt. It's about her survival and her offspring. Not the other way round.
As for the men's version, it's idealism that pushes him to sacrifice - mind, body and soul.
Idealism is civilization as you see today.
Idealism is creation from nothing into something.
For idealism, men are willing to die, not just for women but we'll even go to war and die by the millions to preserve idealism - the higher expression of love.
Hence my contention, a man's capacity to love is boundless, whilst women's is limited in its basic form, not just basic, its the feminine imperative; survival for herself and her offspring.