Let me explain with a historical detour. In 18th- and 19th-century Britain, there was a division between “respectable” society and those who lived in slums that were sometimes known as rookeries (because the neighborhoods reminded people of rock faces where thieving crows lived in little nooks and crannies).
The people who lived in these slums were often described as more like animals than human beings. For example, in an 1889 essay in The Palace Journal, Arthur Morrison described, “Dark, silent, uneasy shadows passing and crossing — human vermin in this reeking sink, like goblin exhalations from all that is noxious around. Women with sunken, black-rimmed eyes, whose pallid faces appear and vanish by the light of an occasional gas lamp, and look so like ill-covered skulls that we start at their stare.”
“Proper” people of that era had both a disgust and fascination for those who lived in these untouchable realms. They went slumming into the poor neighborhoods, a sort of poverty tourism that is the equivalent of today’s reality TV or the brawlers that appear on “The Jerry Springer Show.”