I can honestly say that I have never heard a hunter say the words "if I don't shoot him the neighbor will". Maybe I am fortunate enough to Hunt around people who don't have this mentality but I really don't think there are many hunters who believe this.
Ido hear guys regretting what hey have shot, generally thou the regret comes when people start talking down about their deer. Most of these guys were pumped when they shot the deer, something about the hunt or deer got the blood boiling and they picked up the weapon and harvested the animal for a reason. Whatever their reason might have been is what hunting is all about, they got excited, made a great shot, and completed their mission. If others didn't judge their would rarely ever be a hunter with remorse.
I myself like the challenge of chasing mature deer. However, I also am fortunate enough to be able to sit in a treestand for 50+ hunts ever year in pursuit of this goal. Some do not have that luxury or simply dont want to put in that kind of time deer hunting. For them getting together with friends and family and whacking a few deer is the best two days of the year, regardless of what sex or size of deer. If they throw a rack in a pile, so be it, you have no control over it so you might as well quit letting it stress you out.
Hunt for the reasons you like to hunt and be proud of the deer you harvest.
Kratz