"Teenagers nearly at the top of the pecking order, that is almost but not quite the most popular in school,
are the ones most likely to bully and be aggressive toward their peers, said US researchers in a new study published this month...
Over time, teens at the very bottom and those at the very top of their hierarchy become the least aggressive members.
Aggression peaks in the top 2% of the social hierarchy, and teens in this group have an average aggression rate that is 28% higher
than those at the very bottom and 40% higher than those at the very top.
But, they found the ones at the very top of the hierarchy, who appear to have the most power and capacity for aggression,
generally don't show aggressive behavior.
Faris suggested this could be that once you are at the top, if you show aggression, then it could signal insecurity or weakness
rather than reinforce your position, and it's possible that at this level, you benefit more from being kind and nice"
http://www.medicalnewstoday.com/articles/216081.php