Yeah, eyeballing the trait is probably inaccurate, but if
"Social sensitivity has to do with how well group members perceive each other's emotions," is correct, there are a couple of instances I can recall at work (if I can call it that...hard labour would be more correct

) where I observed this particular bloke was particularly good at reading emotions, among other things. Of course I might've completely misunderstood what that sentence meant, but eh.
Misconstrual of the results. I don't believe they suggest any kind of leadership/direction role, do they?
Hmm, I could've sworn I read somewhere in that article something between the turntaking in groups and the SS...my bad. My assumption was that people with higher SS would've practiced and perhaps gently enforced more equal turn taking between group members, to enhance collective intelligence or whatever the article was on about. So SS and equal conversational turn-taking are independent traits that contribute to collective intelligence?