'should't the photo show exactly what you took'?
This is only true when that's the product the photographer wanted. With that type of thinking almost every great painter in history sucks.
2 contrarian things:
1. you say he'll tell you its ok to edit out blemishes et al ok. I'm a bit of an sooc snob not because I have great technical skill or care about the purity of it all I just can't be bothered to edit things, thats not why i got in the game.
2. Mostly want to challenge the assertion that the great painters didn't suck. I will suggest they did and those daily artists painting realistic portraits had more talent and technical skill. Take van gogh, impressionism, picaso and abstract art and jackson pollack the guy who we forgot and whatever they did was called.
Van Gogh's stary night, very classic takes some skill to make but we generally teach 3rd graders to make a passable version in that style. Like the rest their mark came from dont let me say good pr but for being the first or successfully claiming to be the first in some style or pushing the boundaries of what was considered art and good art. However it takes more technical skill to paint exactly as it looks.
Picaso, not that I stared at many but looking quickly they're easily childish. Finally Jackson pollock and the other guy. Splattered paint on canvas, I could explain why and why people thought it had meaning. I'm not a total ludite but hardly takes skill or technique. Maybe he knew something or tried to prove a point... not to say he sucks but he doesn't have or at least his art doesn't demonstrate great skill. The other guy with him went the opposite direction... just as clever and both went to school together and were reacting to the same teacher and debate but the 'other guy' didn't get famous. Admittedly line design is less exciting and less unusual that formless color. The other guy probably had to try a lot harder and think more.
Not to mention early 20th century New York movement that was talentless. I see a drawer or painter make a caricature of a bob marley head and i'm like that takes skill, I can;'t do that. By the same token as an sooc snob I can say it takes skill and talent to get your color, wb and exposure right the first time. We would also mostly agree that editing too much and making things look unnatural is rarely preferred.