Modern culture doesn't necessarily do much for women - modern culture maybe lies to women to some degree, too.
It effectively says to young women 'you can go to uni, get a PhD, become a director of the board, AND have as many babies as you want.'
Well, ladies, you can't. Only a tiny number of people (men and women) are that capable, and even they get where they get to by making sacrifices.
Y'know, some of my mates from childhood are now married with kids. When I look at their wives' FB page, it'll say something like 'full-time mummy and proud of it'. They are happy. They want to be mums to their kids, like most women do.
Of course, let ambitious people realise their ambitions, or have the best possible chance to realise their ambitions.