To avoid becoming a victim when working in an unhealthy organization a person needs to decide whether to stay and try to rise above the unhealthiness or go and get away from it. If a person stays, they’ll need to be in a place where they can protect themselves, assuring they don’t become a victim. Typically this isn’t a good long-term strategy because organizational health is contagious and at some point a person will catch the same disease affecting the organization. So the best option is to move on.
But when the cause of an unraveling career and life is the person’s own unhealthiness then they’re at risk of losing their job. You see, unhealthy people typically do not take responsibility for the consequences of their decisions and actions. They begin to blame others, including their employer, for their messy life. When this happens a person becomes a victim, and since people don’t like to work with victims, they slowly lose their influence in the organization and ultimately lose their jobs.
And the reason people don’t like to work with victims is because they’re either a downer to be around or they begin to act like a martyr. Martyrs find self-worth by believing their sacrificing more for the organization than anyone else. They believe their sacrifice gives them a special dispensation to do and say what they want to people they perceived to be less committed (which is pretty much everyone else). Sometimes victims and martyrs will rally together against all the perceived injustices done to them which only alienate them further from the rest of the organization.
So don’t let yourself become a victim, take responsibility for your life and career, and you’ll never leave an organization because of someone else’s decision.