The idea is to present how people who stayed there and lived there with all the dreadful things that have happened have become and how those who decided to not be a part of it have become. The man who was once just a poor boy and was tortured by many, has due to circumstances become a Taliban leader who now tortures others as a sign of power.
MacBeth attempts to resolve his conflict by doing the act again. He is consumed by guilt and anger from killing the king that he ends up killing another. This only makes him worse and throws him into the path of evil and tyranny.<span />