What are the specifics of the mental health promotion profession? Is it for monetary value, or the "warm and fuzzy" feeling?

I was wondering if a job in mental health promotion is a high paying, available or growing job; or if the profession is more of a public service that requires a lot of schooling and low pay but makes people feel like they are making a difference. Some jobs in mental health promotion include behavior health plan coordinator (B.A. degree in psychology, $45,000 – $70,000), health teacher (Most have a Master's in Public Health, $48,000 – $64,000), public health planner (At least a BA degree in public health, $40,000 – $63,000) and mental health researcher (Most have a Ph.D. or M.D., $53,000 to $110,000). In the United States the average salaries of each of these professions is lower than the average annual income of other jobs that require the same level of education. Though the pay may not be as high as other professions, people currently working in mental health promotion report higher levels of importance and meaning on average than many higher paying jobs. The demand for more professional mental health promotors is also steadily increasing. http://www.mphonline.org/50-highest-paying-jobs-in-public-health/