ummm, put the car up on 4 jackstands, look under the car and see what appears to be bent. Check tie rods, TC rods and their brackets. Check the multi link in the rear. Check to see if the rack n pinion has shifted off to the side.
was the wall a k-rail? the bottom is built out more then the side of where the body would have hit? So only the wheels hit the bottom part keeping the body off of it?
I say fix it. How fast were you going? Can you see if the rear subframe has shifted.
probably only bent stuff that can be replaced.