An angry evaluation spurred the more disagreeable teams to do better than a happy (or poker-faced) one; the reverse applied to the more agreeable teams.
I would guess that disagreeable people make more money and in some sense get promoted more frequently because they're more willing to just say, this is what I want.
If you are disagreeable, you end up doing better as an entrepreneur and a founder and as a creator because you don't have this need to please everyone all the time.
In an experiment by Gerben Van Kleef of the University of Amsterdam and his co-authors, teams comprised of agreeable and disagreeable people were given feedback on their performance by an actor.