I think that this is a big question in photography. I am not a professional. Photography for me means seeing a "photo" and recording it. I count on the camera do make an accurate recording. It irritates me if what I see in the camera is not what I saw with my eyes. To be honest, since moving to a Fuji X-T1 from a Nikon SLR, I more often question the colour fidelity of the Fuji.
The manipulation of the images is an art form. Whatever you use, let's say Photoshop to generalise, it is the creation of a new image. Since you are away from the original scene, your creation may not be exactly what you saw. I do not begrudge those who create "art" out of photographic images. It often generates magnificent images, but it does not do what I want.
I want to spend my time seeing a "photo" and capturing it. I have no interest in spending my time manipulating it later. That, to me, is not photography, it is another art. Not less, but different.