The japanese have been famous for this kind of cruel, psycho and immoral activities since world war 2. In their country, prostitution is legal. You can get any girl for a night if you are afford. May be they are too tension on working or community trend., but they cannot use this as a excuse to tortue woman like this kind..
But from another point of view, they have produced so much AV, most of this AV have agreat market on oversea like Hong Kong, china taiwan, south east asia contry. This AV market channel billion dollars to Japan every year. The people who like this AV is supporting the AV industry in another way.