Of course, I want a good and steady income to help support my family, but if I didn't love helping people, I would have to chose another path. I also enjoy working as part of a team. Hopefully this path will fulfill all my needs and allow me to help others in the process. Does this sound too geeky?
Sometimes it's hard to do what you know is right. The ultimate test is whether or not you can live with yourself. Your decision to not sacrifice the safety of yourself or others should be unquestioned, but even if it is, you can still feel good about yourself. You may find a new job, but you can never find a new you.