> average persons dedicating 2 or 3h of their 16h/day budget on negative thoughts about other people's lives, poisoning their mood and ruining the 13 to 14 other hours they have left awake in those days

Does that happen? I think most people that criticize a billionaire don't dwell on it and are onto something else five minutes later. Voicing your opinion is quick and easy, and even if it changes nothing, it's too little to ruin your day.

Only a psychopath would devote that much brainpower to issues out of their control.