My favorite question to ask is: "why you want a career?" to pretty much anyone who speaks in this manner.
Serious question to people, I don't get it. I love learning, I'm highly qualified in the academic space and enjoy picking at problems. I've written papers, patents, well paid, etc. Highly successful by most metrics.
That said, I don't work for a "career", I work to afford me opportunity.
A family is an investment in the future, it provides you happiness, but more importantly purpose. Sure, there's a lot of stress, and you have to invest a lot of time. That said, it pays off an order of magnitude in terms of life satisfaction and having future opportunities. Who's going to take you on vacation when you're 65 and have a bad hip -- if not your children? My proudest achievement are things my children have done, not the accolades, promotions, bonuses, etc I've received in my career.
If I work hard, slave at night to get my presentation(s) done, will our product be better? Maybe, but in all likelihood that just makes me look good enough to get promoted, but 5 years later I wont have anything but a pay check to show for it. Wealth without purpose is worthless.