The force of habit and social pressure can't be the reason to do or not do something in a particular way. Of course many may like it when people tell to them what to do and how comes to behave. Writer tells to being individualist, who also thinks about the problems of the society and the world. In her opinion world is sick and that can't be cured. Perhaps some hope for a better one is.
Society is always evil.
The society's after comes always smaller unit, individual. World, where mankind is controlled by an emperor. We would have to be clones, but we are not. I don't know. World would be to possibly better place, if most of the people could be for willing to kill.