Pretend that you are a coordinator of health education who must defend his/her program to the local board of education. Make the case using your philosophy as well as practical benefits of health education, including economic, academic, and others.
Health education is typically done to combat chronic diseases such as Diabetes Mellitus, obesity, etc. Or it can be done to change negative behaviors such as smoking, and drug and alcohol consumption.
If you go to the Centers for Disease Control and Prevention, and look at the national statistics on Diabetes Mellitus (http://www.cdc.gov/diabetes/pubs/estimates14.htm) You'll find that approximately 9.3% of the U.S. population suffers from Diabetes. This has a total cost of about $245 billion. This roughly works out to an additional $8500 per patient. You aren't going to eliminate all of that cost with your program, but you could estimate how the program would impact this cost. Maybe you project that it will reduce it by 10%.
Health education is usually focused on ...
This abstract gives an example of how to defend a health education program to a local board of educators.