Modern Confusion
The inability in modern western society to identify a dominant leader or a social heirarchy apprehended and adhered to by the other humans in one’s community is possibly a significant cause of the emotional problems/ disorders suffered in these cultures. The drive to ascertain one's social standing/power in a modern community often cannot be satisfied due to insufficient or contradictory data. Particularly in early adulthood might this lead to problems when, in the small community settings in which we evolved, this would be the time in one’s life when social maneuvering based on accurate knowledge of one’s status would have a large affect on one’s social success which for humans is intimately associated with, if not equal to, evolutionary success, ie survival and reproduction.