Most non hobbyist still think fish are little more then floating vegetables, goldfish having 5 second memorys is still widely believed, I know a few vegetarians that eat fish as they don't have enough intelligence to feel pain. This type of thinking is encouraged by the food industry as trying to humanly kill fish on a trawler would raise the cost considerably. The sale of monster fish to unsuspecting hobbyist is not something that most people have a problem with, if the knowledge was raised in the majority of the general population something might happen, but then you run the risk of do gooders banning the hobby and sports fishing.