We've spent now about 150 years trying to convince ourselves that photographs are reliable evidence, some unimpeachable slice of the real world. That was a myth from the very beginning.
Photographs are of course about their makers, and are to be read for what they disclose in that regard no less than for what they reveal of the world as their makers comprehend, invent, and describe it.
Any photographer worth his/her salt - that is, any photographer of professional caliber, in control of the craft, regardless of imagistic bent - can make virtually anything look good. Which means, of course, that she or he can make virtually anything look bad - or look just about any way at all. After all, that is the real work of photography: making things look, deciding how a thing is to appear in the image.
What a photograph shows us is how a particular thing could be seen, or could be made to look - at a specific moment, in a specific context, by a specific photographer employing specific tools.
... the battle for the acceptance of photography as Art was not only counter-productive but counter-revolutionary. The most important photography is most emphatically not Art.