LOL
Its all based on the unthinking assumption by the viewer that a photograph is a record of what was there. I said it recently in another topic, that all photographs are abstractions from reality in varying degrees.
The point is that news and journalism photographs can rightfully IMO be expected to be un-manipulated.
Landscape photographs of a "Place" presented as being of that place can rightfully IMO be expected not to be fundatmentally altered (they would not represent that place otherwise).
If I thought about it more in depth I'm sure I could think of many other uses where the image should not be altered because it gives a false impression where expectations can rightfully be that the image is not altered and is a "true" impression.
However, we then come to "Fine Art" or "Craft" or "Alternative Processes" or "Hybrid" photography where essentially anything goes.
It comes down to your each persons own standards of integrity about they are trying to do. Some people like to capture and show it as it was and others like to embelish the work. It's a tricky subject.
For example:
http://www.digitalcameraworld.com/2...grapher-of-the-year-2012-winner-disqualified/
The cop out by the entrant was that he didn't read the rules (LOL, do we believe that?).
I was going to enter my own shot from almost the exact same position and view the following year as a bit of a joke entry but didn't.
Is photography a moralistic pursuit? Depends what your objectives are.
But one thing for sure is that the ability to digitally alter an image has reduced peoples trust in what they are seeing is what was really there. You'll never turn the clock back on that. Everyone knows photographs can be altered and therefore all of them can ligitimately be suspect as not being the "truth" in the viewers eyes. You may not agree but that is irrelevant, it's what any member of the public thinks that counts in the long term. All you can do is maintain a high standard of integrity and don't deliberately falsify your work as something it isn't.