Many human behavioural studies show that animals may not wear clothes yet they are not ashamed. This is because shame is usually caused by a collision between our behavior and our culture. Society uses shame to enforce norms and sets standards but to those in the forest, there may not be a lot of shame.
In the past few years till date some researchers have mapped the collapse of civility in our society. They have measured the trajectory of our descent into lawlessness as a nation.