Tbh, I think this is a false dilemma. You actually don't have to choose between the 2 options given. You can have a totally different answer that is more true to yourself, and there is no right or wrong answer.
To me I probably would say something along the line that I live to achieve meaningful things, of which work is a big part but also not the only part, e.g. there are still family, friendship, and social impact work out there...
Also remember that interview assessment goes both ways. If you are asked this question and you sense that the interviewer wants you to commit all your time only to work, you might want to evaluate whether that culture is fit for you or not.