It is not uncommon to hear about people who have experiences each day where they feel taken advantage of or harmed in some way. As a result of this, it can be normal for someone like this to feel oppressed and/or victimised, along with feeling offended.
If someone doesn’t feel good about themselves or simply wants to feel better than they do, they can end up trying to change one area of their life. At the same time, they may try to change a number of areas of their life.
When someone has an elevated view of themselves, it can be normal for other people to see them as deluded. This person is simply going to be another human being, but they will create the impression that they are different.