I reckon your not in to fashion photography.
I see your point thou.. I agree since I am not a professional and I shoot mostly out side.
I always wish for a picture to work strait out of the camera but only about 5% of them do. the rest I usually end up changing adding destroying and so on.
now since PS is a relatively a new thing you can compeer it to developing in traditional film.
but PS also let you add lens filters and lens effect or add and paint completely new things that did not exist in reality when you took the picture.
this is a new thing or an old thing. if you ever seen old pictures from the 30's they used to paint on the print all the time.
or you can go extreme like Pierre and Gilles
Pierre et Gilles - Google Image Search