Quality-of-life-seeking
A living organisms' need to improve their quality of life seems to serve the purpose of improving their chances of survival. Quality-of-life-seeking also includes reducing the levels of stress experienced by an individual organism. Stress can cause both physiological and mental illness. Stress can be due to crime: threat and acts against the person; threat and acts against property. Health in general comes under this category: individual organisms that seek to maintain and improve their health are improving their chances of survival.
Read more about this topic: Biological Imperative