....AND I both burnt the shadows more and dodged highlights in my underexposed RAW file.
Given that the light is from stage left, see how the file has withstood the massive amount of highlight dodge I've applied to the wall AND there is still tonality in the darks...

...I'd have been hard "pushed"[geddit!]to do this even back in the day when I ran a darkroom and used the subtlest dev times.