The Washington Post provided the following story that demonstrates clearly that prevention in the form of organized health and wellness programs provides a much higher ROI than simply focusing on treating illnesses:  http://www.washingtonpost.com/wp-dyn/content/article/2008/07/17/AR2008071700990.html?hpid=moreheadlines

The article stresses that while many people believe Wellness is a long term investment, this study demonstrated clearly that the ROI actually occurs within a very short horizon of time.