The plot is well crafted and rather unusual. I was intrigued by the story line, and relieved by the standards of ethics and moral in the book. I bow to the descriptions and empathy to victims. However, without being prude, I still cannot figure out the relevance of the sex scenes. 
The harsh world of greed and the corruption associated with it are well described. We are in the world where money is made fast, with no mercy for anyone. And in this reality, emerges a true love story, like in fairy tales. The contrast is such a surprise that it is difficult not to be sarcastic and to expect another twist in the plot. You'll have to devoure the book, like I did, to find out.