"Not only are there dehumanizing tendencies within people, there are dehumanizing forces encrusted in society. Sin also has a social and objective dimension. The social, political, cultural or economic structures become dehumanizing when they aren't at the service of "all persons and the whole person," in one word, when they become structures which perpetuate injustice. Structures are a product of persons but they assume an impersonal and even demonic character by going beyond the possibilities of individual action. Collective and concerted action to change said structures is necessary, for there is no structure which is sacred or unchangeable."