An acquaintance of mine has his own wedding and portrait photography business. The shots of his that I've seen usually evidence near zero thought given to either the background/backdrop or depth of field. Actually composition seems to have been a hasty afterthought as well. I've seen quite a few other "professional" photographers who have acquired the same aforementioned "style". I had mulled this over and came to a loose conclusion that it is a result of the digital world making everyone a self-perceived expert....but...Now that you mention this same scenario stretching decades back, makes me think that perhaps this is simply a case of every profession having its fair share of hacks? For instance, ever seen someone with a bad tattoo and wondered who the miserable slob was that did the work?