A basic necessity for any real growth. Come to the realization of God's existence to attain the highest mental growth. This is a bottom line reason for the poor performance in public schools as well. Recent test scores appear high only because standards have been leveled. Such deception shows how Godlessness is a danger to society.
Violence sells because violence is associated with justice.
As an example, Clint Eastwood hunting down the bad men and savagely paying them back in the same way they treated others. This has created the illusion that each others blood is what the people want to see. When in fact, they wish to see justice. A very profitable illusion for Hollywood. We are also shown people as selfish by nature.