"The assertion of motherhood as sacrifice comes with a perceived glorification. A woman is expected to sacrifice her time, ambition and sense of self to a higher purpose, one more worthy than her own individual identity. This leaves a vacuum in the place of her value, one that others rush to fill."
You may read the whole article from which this quote is excerpted here.
I was thinking along these lines today, well, not exactly but... That I stopped writing for 25-30 years. That every American male writer in the last 60 or 70 years has had a wife, or a succession of wives, that kept their lives running, proof-read, gave them daily feedback if they wanted it. I thought this a brave and thoughtful article, and will continue pondering upon it, as I turn towards the next book.