Any given population of species is showing deviations following a statistical pattern. It matters for industry. Like when you think about foot size distribution is important for shoe makers. What we rarely think about is mental abilities and its impact on social structures. Now my personal experience is: 5% are good, 15% are soso, 10% are evil sociopaths and the bulk ist stupid as fuck acting even against their own ability to survive. Now you can feel free to sort me in.