I can't speak for everyone, but I certainly feel like that. But weighing it up it seems to be better than the alternative, which is an addiction to selfish pleasures. I can guarantee you that the great majority of people who have achieved great things in the world have done so out of a feeling of needing to prove themselves to others.

I think the majority of people probably fall into two categories: those who are externally motivated and those who pretend they aren't (because they care too much about what other people think).