“According to the Hare Psychopathy Checklist — the universally accepted diagnostic tool used to assess this disorder — a psychopathic personality includes traits such as a grandiose sense of self-worth, a lack of remorse or guilt, poor behavioral controls, pathological lying and a lack of empathy.”
Link: https://nypost.com/2020/09/26/why-silicon-valley-ceos-are-such-raging-psychopaths/