It's not just that it's a result of our ideas of guilt. I think that's self-evident, as I mentioned earlier. Just a moment of self-reflection will confirm that to you. There is a point in the article that I do agree with and it's a significant one. The psychologist notes that guilt depends on the inter personal context.
Guilt tends to be a two-person kind of thing.
Now I think he's right there. Now, that's significant. When we do something immoral we are intuitively aware that we've offended someone. Many times the guilt that we feel has nothing to do with a human relationship. I had a conversation with an American in Kuala Lumpur, Malaysia, last year when I was on my way to India.