Not to be harsh, but in my first responder as well as my first aid training the first thing is "check for your own safety". If unsafe, then be as selfish as you can. If I was in a helpless situation, I hope I don't still try and help with the result that both don't survive.

e.g. fire and person inside some room is really far away, lots of smoke, cannot see, heat, etc? Close the door, you cannot help and you'll very likely die.

As said: This is taught during first aid and first responder courses.