From www.dictionary.com:
Being a "doctor" has nothing to do with a legal/moral responsibility to society, it has to do with having completed a "doctoral" academic program.
Other paramedical professionals (paramedics, EMTs, nurses, etc) are held to a standard and have a legal and ethical duty to deliver care. If you are working as an EMT (as in, you are on the clock at that moment) and you refuse to treat someone, you are criminally liable for neglect, unless you can come up with a compelling reason (self preservation) for refusing to treat the patient. I'd guess that police officers and firefighters also have a legal "duty to act" while they are on the clock. In fact, all citizens have a legal responsibility to act to prevent/report crimes.
I remember back in the 1980s, it was illegal for a motorist on the Alaskan Hwy in winter to not stop for cars parked on the side of the road. The idea was that traffic was so scarce, if someone broke down, they could quickly freeze to death if no one helped them out.
Good luck with the job search Mike. Sorry the internship deal didn't work out. Maybe you could get some temp work in a chiro office? Just filing and shit? Those things can be a great way to get an "in" in a field you are interested in.