"Mass society is any society of the modern era that possesses a mass culture and large-scale, impersonal, social institutions. A mass society is a society in which prosperity and bureaucracy have weakened traditional social ties" This is the definition of mass society theory. I would thus hypothesize that mass society strengthens the economy greatly but likely abolishes leisure activities for the sake of economic success.
I hope this helps!
Well, everybody has their own reasons for literally everything. It all depends on what's happened in the person's life. If someone loses someone, or get's hurt, or something they take out their pain on other people, leading them to kill people.
All of this goes under sociology, behavioral science, criminology, victimology, and psychology.
As for hatred, I don't know that people "love" it. People just have a need to be defiant and rebellious.
As for power, people are sometimes control freaks. They need to be in control of all situations. This has to do with how they were treated as a child. If they were beaten, or bullied, they'd like to rise up and become the beater or the bully.
Hope that helps!
Edward Braddock led the two wars