Let you consience be your guide. Personally I couldn't forgive myself if someone died and I could have prevented it if I had not decided it wasnt my problem. If you witness a horrible traffic accident, would you help or would you just say that idiot shouldn't have been texting/drinking/speeding/you name it?
Yea I don't stop for traffic accidents "for the most part" car in the water or on fire I WILL stop. Putting your nose where it doesn't belong will get you sued or put in jail one day. I have no formal training to engage in gunfights or move people with broken bones so guess what I walk the other way. I respect your eagerness to help others but I've had trainers, LEOs and Lawyers all at some point tell me my best interest is to turn and walk away. My #1 goal in life is providing for my family and being there for them.