Well, ZIZ is a company like any other, simply working in adult entertainment.
They are most likely running surveys and statistic as to what kind of content gets the sold the most and cater thereafter.

But in a general sense their moral is warped in Japan no doubt about it.
They do statics once a while, like most other countries about all sorts of things.
A real twister compared to western countries is that 9/10 women statistically in Japan do not care if their men cheat on them with other women as long as the come home to their girlfriend/wife in the end.

I have not seen the survey/statistic for how men in general in Japan feel about women cheating, but I would guess from the high amount of NTR and cuckoldry in their adult entertainment that their level is also quite a lot higher in Japan than it is in the west.