I am thrilled to note this kind of query from a teen, and to see that your perception is clear and valid. All change for good begins a person at a time, as does evil. But note also that as the wicked become more wicked, so also do the good become more good. There is hope- maybe not for all because not all choose a higher path, but for anyone who will not yield to the easy way of evil.
∑ī~`∑≠ĽGarapanę≠∑ī~`∑ "Look! Crumbs on his jacketses... Heeee took it!"