If the story you are referring to is "The Great Gatsby", it might be said that Nick learned that she is a dishonest woman because she cheated to win the golf tournament. She might be considered a compulsive liar and she seemed to assume that everyone was like her,
Loss of individualism. If everyone is the same, everything is the same day after day in a cubicle with no windows or distinct decor differing from one room to the next, there is no individuality
Explanation:
the moral of the story is that power corrupts.
Macbeth decides that he does deserve to be kind, because the witchest put the idea in his head
