It's going to be "creativity" (another hazy definition!) rather than effort, though. Photography, often said to be all about framing, seems very low effort. You might take one lucky snap. Then the effort can be claimed to be in years of getting ready to be lucky, which is a fair point, but that displaced effort isn't really in the specific photo. Besides, maybe you're a very happy photographer, loved every minute of learning your craft, and found it no effort at all, just really interesting.
Yeah, photography (editing aside) is about having taste and getting lucky. A good photographer can of course raise their odds of getting lucky, but still. There's some technique in there too, but that's really not all that complicated. That said, I think few things match a good photo. There's something about a photo subject being real that I find fascinating. A photo exhibition does not display the imagination of the photographers, but rather the incredible in the real world.
It does, however, display the photographers ability to say "hey, you should see this" and be right about it.