I dunno -- until feminism the idea of work-life balance wasn't around. Not sure if feminism specifically was the reason for that, but maybe the general consciousness-raising and questioning of rigid gender roles that were a part of feminism have contributed.
I think feminist aims in the workplace (allowing for women to return to work after having a child, with the guarantee of your old job back, time sharing arrangements, part-time work, no cutting off of your pension for maternity leave, etc.) have actually been beneficial to those men who are the main breadwinners too, as the pressure to earn and to devote your every waking moment to your career is surely eased if the mother as well as the father can contribute. There's still a long way to go on this front of course.
I think progress will really be made when men realise that what's good for women in the workplace could be good for them too. There's a lot of 'them and us' feeling on the part of men that is counter productive for both men and women.
For instance, how do men benefit ultimately if they have to pay high taxes to support older women who have been paid less than men throughout their working lives, assuming they've managed to find a job that allows them to take care of their children too, who don't have the same contributory pensions that men can look forward to if they've taken long breaks while having children because childcare is too expensive to make working a viable proposition (assuming there's a main breadwinner in the family)? It's shortsighted of men to want the workplace only for themselves and for those women who don't take a child break. Everybody pays for the financial inequality that the traditional workplace and employer mindset produced.
Feminism could be gender blind if men could see the advantages in it for them that feminism suggests for the workplace. And I do believe it's about treating people as people -- if you had a son who was good at maths and science and did well in general in school and was told by a teacher that he couldn't be an engineer/pilot/CPA/Prime Minister because that's a job only for girls, and why not choose some career ambition that was more suitable for boys, like secretary or nurse, and take subjects in school that would steer you in that direction and preclude the careers he really wanted, would you feel your son was getting a fair shake? Would you feel angrier if a teacher suggested that to a son than to a daughter? Feminism is about everyone's human potential, ultimately.