You focus on sexual morality, but I don't think Christian sexual morality is particularly unusual. (Confucian sexual mores look a lot like Christian sexual mores). To me what makes the cultural background of Christianity unusual is that it focuses on individuals striving to follow abstract virtues. 'Sinners' recognizing that they have done harm and then seeking to do less harm. The lazy believer is slothful, and so confesses their faults to the priest (acknowledging personal faults), repents (promises to act differently) and expects their god to hold them accountable (feels obligation to follow through). Repeat once per week for ten years and they will either become industrious or neurotic. Same thing with all the seven deadly sins. So the cultural focus is on individuals adopting pro-social abstract virtues. It seems to me that in other cultures there is less focus on abstract virtues, and more emphasis on social heirarchies (son obeying Father) or specific actions that must be taken (one must pray 5 times per day and follow a specific diet). One might also argue that the history of belief in personal sin makes European cultures more self-depreciating, but I feel the Japanese are more self-depreciating than the Europeans.
> One might also argue that the history of belief in personal sin makes European cultures more self-depreciating, but I feel the Japanese are more self-depreciating than the Europeans.
I think that has more to do with collectivism vs individualism, which itself may be to do with hierarchy and community. Those values may have been endowed through religion over time, but I don't know enough about Shintoism or Buddhism to comment on if it influenced Japan into becoming a collective focused society.
