A "Headline" can say a lot

Why is it that negative behavior goes viral yet positive behavior is known only to those around it? Even our "Headlines" and News is about negative situations that can remain front and center day after day sometimes even month after month yet positive behavior is barely mentioned and hardly ever repeated. Perhaps if we start talking about positive actions then we can spread a more positive behavior instead of spreading negativity. If we want a more caring positive society then we all need to do things that create "Headlines" that are about positive situations to pass on things that are positive.