When I was teaching at Holloway Prison, I had a lot of students who had bought into victim mentality. They blamed everybody but themselves for the fact that they were in prison. I had one student tell me she was a a thief because "god" had made her one. Another student told me that the only reason babies develop was to do with instinct - nothing to do with our determination to grow and thrive.
These are extreme views, but they indicate what can happen if we allow victim mentality to dwell within our minds and our consciousness.
To read more, see Overcoming Victim Mentality.