I appreciate the response.
I would say that we mostly agree on both points.
I think that the word 'ambition' is colored in a negative light, which is probably the source of your intuition feeling that it was wrong. That's why I specifically used 'drive' or 'desire' first in the sentence.
Your father is successful, because he had the drive to get to where he is in life. I was not referring to the drive to be better relative to others, per se, but the drive to better oneself, one's life quality, etc. by internal yardsticks.
As a few other posters have talked about - I think someone who gets into a 'cog' position, and then ceases all personal growth and betterment is 'not as good of a person' as someone who gets into a 'cog' position and continues their attempts at growth and betterment. They may end their life/career in the cog - successful growth is not the requirement, merely the desire for it. And that growth may be entirely outside of 'work' - moving into charity, the arts, etc. is all just as good, from my point of view.
Does that clarify at all?