Some people are sad and unhappy and they can't find purpose in their lifes.
Hard to find happiness and even to communicate with other people we tend to think the super wealthy are charming and extraverts but often they are alone in their mind and introverts when they have hard enjoy normal life and they struggling to boost their dopamine levels in brain so they fill that empty void with money and wealth and even the expensive items wich they don't need even but material and greed and big wealth is only thing that can just little boost their brain dopamime levels but even the super wealth not enough.