I really can't say because uses are different and require different levels and kinds of postprocessing.

For printing purposes, some picture noise will not even be visible but contrast, punch, and separation of the subject from the background are extremely important. For video projection, even lighting and sharp images are important. For fashion or product work the clothes, car, diamonds etc. are more important than the model or anything else in the picture. For legal work it is necessary to ensure accuracy with no lens distortion. For some work, it may be creating a text area in the photo. For scenics accurate colour without the haze or overly cool colour temperature is essential.
For portraits it is flattering the subject which means doing the "touch-up" which was not possible at the camera.

Tegan