Petty people and being self absorbed is a lot different than minding your own business and not following the crowd. When you are living for yourself and striving to do good not only for yourself but for others. Following the Golden Rule and having a positive impact on the people you come in contact with will serve you better then being selfish and only serving yourself.
When we take the time to consider that we are all fighting battles and decide to be kind to each other and not let the devil run our mind and our mouth we will reap more benefits than we can possibly imagine.
Do good, speak good and when confronted with negative cruel people do not bite your tongue. Speak up for yourself in a positive manner and confront the bully and shut them down.
Your world and the world as a whole will be a lot better place to be when we live a honest true life and not fall into the sad world of being self absorbed and bitter.