Health is a huge pie in the money making. If you are a professional in the health field chain, do you think about the long term impact of the patient, the patient's family, the environment and the country even the world?
If anything that you do not want to use on yourself, do you still keep doing the research, marketing it, apply to the patient, approve its use or encourage people to use it or let your family member or your loved one to use it?
There are so many choices for a job. If you make your mind to not hurt people's health, believe that, you will find a good solution.