Whatever we do is selfish in one way or another. Nurturing yourself is as valid as helping others.
Pursuing the dream is the reward. The end result is nothing but a dividend.
Instead of the bland conflict-avoiding answer, why not try the less polished response next time. For one thing, it would be more authentic..
Instead of seeing your career as a linear journey that progresses step-by-step, see it as a series of various journeys that unfold as you go
Unlearning is probably as important as learning. What knowledge & beliefs about the world do you carry with you that no longer serve you?