When other people spew hatred and misery, their negativity can seep into your thoughts and words.
If you are the projector of negative energy, you might just as quickly make the people around you miserable. As a leader, you cannot do this. You have to neutralize all harmful projection and make your environment positive. Others will follow you whether you are good or bad—it matters only that you lead. Recognize this and step up as the right kind of leader.