I just saw a terrible car accident and some civilian guys took the injured guy out of the car...good or bad call?

That really depends on whether there was imminent danger of the car exploding. Without the proper training, moving a MVA victim puts them at risk of developing a spinal cord injury.

That depends on what they did after they took the guy out. If there was a risk of car fire, or profuse bleeding..they need to be taken from the car..laid flat on the back..hold the head and neck still and attend to bleeding until help arrives.

Bad unless he needed cpr or the car was on fire.

look up the rendering aid law, because even trying to move them in the event a fire starts might not be a proper thing to do. However the statute in your state should specify. If someone moves a person while the engine is catching fire, it might amount to a dozen different legal problems, more or less. Like I understand it here if a wreck happens and I am apart of it as as long as I call the cops and stick around for the cops and wait to be ask a question, that is rendering aid. I don't find it to be my problem if a fender bender happens and I witness it, although I'd call the law and assistance and stick around if there was some kind of injury even not being a part of it, just for the better of mankind, liable or not. Then again I haven't seen that kind of stuff, in action. I kept a person company one time in a flipped vehicle I had no part in didn't see the accident in action and left my car parked in the middle of the road, without hesitation, looked both ways and ran over, just fretting for the person while the ambulance came, moved my car and wasn't ask a thing. I stuck around long enough to see if I was gonna be ask, and wasn't. I am just glad the person didn't perish. Heck someone had to keep the person from being looted and I wasn't the only one stopped. Wow way way over ten years. I didn't touch anything, person could talk, so I figured person'd be alright and was like, whew, when the ambulance got there too though. Strangest experience ever. But it seemed to keep person alert enough to hang on. idk. Just the better benefit for mankind set in and I was like oh s-hit, there is a person in that, went over, someone had to check and make sure person was alive, and I just took it on myself, out of sheer concern. Then sirens were close and I got out the way. I don't know how that person got like that but everyone involved in the accident was present, not my business. I just didn't have it in me to drive away from something like that without checking. I know it's odd, but sometimes, people do just care out the blue and check on people in situations like that they have no involvement in. Checking the statutes really is important, that way you know what you can and cannot do and those statutes are your first defense, because if you go in there as a witness, you take the chance of civil suits and if your not involved in the accident even possibly criminal ones, just depends on what your willing to risk to check on a person and what kind of aide your licensed and qualified to give.