Yes, I would. I have a common ENTJ trait... -_- Superman complex. I don't like it, but I do stuff like that without thinking. Usually it's intervention when people are fighting or when some poor bastard gets bullied. I think it's stupid, but no-one deserves to die or suffer at the hands of several people, or someone a lot stronger. Well, almost. Certainly the drunk guy doesn't deserve to die, and the dorky kid doesn't deserve a beating even though he's really annoying.
A response like that would only make me respect the person more.
Well, I guess there is a significant difference between doing something while actually risking your life for someone else's sake. If it's a "safe" lifesaving job, then I guess the exchange is fair. Nurses get too little cred, tho.
Police officers, soldiers and firefighters should have better pay, though... No doubt about it.