I don't think it's necessarily 'going too far in any direction is wrong', so much as 'always remember you have these options'.

For some people, full blown corporate is everything they want and need. As long as they keep making that choice - as opposed to staying where they are out of routine - they can be happy. I'm doing the consultant thing, and always weighing this up versus the startup thing - happy with my choices to date, and those include regularly reaffirming that corporate isn't for me...right now.

One day, that all may change.

From the closing piece of advice:

No matter where you are, make sure you're always growing on a personal level. Never sacrifice your personal growth for some "I'll make it if I only throw everything into it" martyrdom delusion. Successful people start successful businesses, and successful people are always growing.

As someone who is nearly 30, and still ridiculously confused about what I want out of life - does the above hold even if you abandon one form of personal growth for another?