Most of the comments seem pretty on track.

I think that if self rescue is a reasonable option for you or your group, then you should do it.

If self rescue is going to cause more harm or is really risky, then better to sit tight* -- if you've filed your trip plan and have the means to signal and all that.

If you're out where no one knows where you are a la Aaron Ralston, then you're now channeling Sir Douglas Mawson.

HJ

*An exception might be something like a rattle snake bite. Time is of such an urgency that you might want to pursue both options simultaneously.

In all situations the safety of the non-injured is really vital. A drowning lifeguard is of no help to anyone.