"If the image needs "manipulation," then you didn't do your job"

Ooooh, them's fightin words ;)

Can't you think of any reason why you would need to change something after the shutter was pressed? Haven't you had something that you just couldn't control at the time of shutter press?

I agree completely with your approach, that you need to do everything possible to make the photo correct before pressing the shutter. But come on, haven't you had a time where you had no choice? Equipment limitation perhaps?