Click the two links below to view research that highlights the worst side of us (including psychopathic traits in leaders), as well as the recent sequel showing a more encouraging alternative (empathy and compassion):

https://digest.bps.org.uk/2018/10/12/what-are-we-like-10-psychology-findings-that-reveal-the-worst-of-human-nature/

https://digest.bps.org.uk/2019/12/10/good-at-heart-10-psychology-findings-that-reveal-the-better-side-of-humanity/