Social media is an emotional engine. Neutrality does not trend. A video must make you laugh so hard you share it with your family (think "Charlie bit my finger" or "The Corn Kid"), fill you with incandescent rage (an employee being rude to a customer, an act of vandalism), or awe (a freak weather event or a miraculous catch).
Videos highlighting specific societal interactions—such as a customer dispute in a store or a random act of kindness—become case studies for broader cultural debates regarding ethics, law, and human behavior.