Throughout the video he keeps going back to the idea of "self-obsessed" people (4:37) and how these sort of people not only isolate themselves from others, but diminish their opportunities to learn and experience different things throughout their life. You never really think about how influential your attitude could be and how detrimental it could be to your entire existence. The other section of this video that really interested me was "What real learning looks like" (12:47). Although you learn countless things in school, it is the things that you learn with your friends while just having discussions that are the sort of things that truly stick with you throughout life and shape you as a person. This sort of knowledge is priceless.

http://www.washingtonpost.com/blogs/compost/post/joe-paterno-penn-state-and-the-bystander-effect/2011/11/08/gIQAQWJs3M_blog.html
This article from the Washington post overviews an account of a man named Jerry Sandusky who preyed on young boys in Penn State's football team. Due to the bystander effect, no one reported or did anything about the abuse for decades. This may be human psychology at one of it's worse.

http://kidpower.org/library/article/bystander-effect/
In a response to an assault in Richmond High school, the community is making an effort to educate the public about the bystander effect. To be able to recognize the causes of the bystander effect and take steps to overcome this psychological barrier as well as be educated in personal safety, one is able to reduce such tragedies from happening again.

http://www.personal.psu.edu/bfr3/blogs/asp/bystander%20effect%20image.jpg
This cartoon displays the bystander effect on a very simple level. In this drawing, a police officer is witnessing a crime yet he is not taking action to help the victim. Despite this being his duty as a police officer, he claims he "doesnt want to get involved". This is a very natural response from humans when we witness a crime of this sort, despite our ethical side knowing that this action is wrong.