Here is my $.02 worth
I think there is a (sometimes) fine line between editing a picture, and ALTERING a picture. My definition is as follows:
Editing: adjusting the elements of a photo that exist in capture
Altering: Taking away or adding elements of a photo that did not exist at capture.
So, back in the days of 35mm we sent the film off to be developed (or did it our selves). During this process we could effectively change the ISO of the film.
When it was printed, there were color balance issues, and cropping issues. All of these things were dealt with, whether by us or the lab, but they were issues.
DEVELOPING a digital photo is not that much different. If you shoot RAW, then you certainly have to "develop" the image. If you shoot JPEG, well then the camera decides how to develop the photo. But, you can still add to it.
I do, and I believe we all need to, EDIT our pictures ie..cropping, sharpening, color balance; I don't really like ALTERING a photo (altough I have on limited occasions...I got a great picture of a BIG Elk, but there was a stupid highway reflector in the background....it got altered right out)
I strive to capture the image in camera as I would like it to be presented. I don't rely on photoshop to "get the shot".