I think we are learning about this because they reflect what happens in the real world.
Stories:
Willowmaid helped me to understand that most people take what they want without thinking of the consequences that may come with it.
Tarzan could be connected to how some people take advantage of what nature gives us, instead of taking care of it because we humans depend on nature too.
Avatar: The Great Divide helped me to understand that sometimes we argue with someone without hearing their side of the story.
Supergirl: Welcome to Earth could be connected to how some people treat those that are "different" to them badly.
Zootopia helped me to understand how some people judge others based on their cultural background, just like how Nick judges Judy because she was a bunny.
Avengers: Endgame helped me to understand that even though there is so much good in the world there will always be evil in it somewhere.
Ryan Murphy's Glee Never Been Kissed could be connected to how some of us use people for things that they shouldn't be used for and how we treat people just because they are not alike us.
Butterflies by Patricia Grace helped me to understand that everyone has different opinions and different perspectives of life.
Avatar: The Waterbending Master could be connected to how those that are "powerful" treat those who they think are "weak".
Barriers by Hinewirangi helped me to understand that sometimes language could be a barrier to interacting with people but it should never be a reason to stop try