Why do people not like "perfect" snapshot pictures?

I thought about it today and realised we managed to get print photography up to a fairly high standard (post polaroid) just in time for the advent of the digital camera, which it took ages for people to get used to so they continued to take bad photo's. Then when they got that right people jumped onboard using poor quality phone cameras for allot of photography (who took a camera to concerts etc. after phone's got to about 2x megapixel) until those improved enough that all of a sudden there was no excuse for bad quality imaging until BAM Instagram... (Yes I know thats an effect, but it basically replicates imbalance) Do we, as people, have a desire not to see photo's that are truly snapshots? (Are they too harsh perhaps?) Photographers will always use a camera because they aim to manipulate a real image so is it the common happy snapper trying to replicate that. I know its a generalisation but is there some sort of scientific/sociological reason behind why we settle for slightly poorer photography? Does it feel warmer to us?