A good friend of mine has said: "Without darkness, the light has no meaning."
The concept is almost impossible to understand for those who have only stood in the light. You get a one-sided view of the world. It becomes easy to gain-say all that is truly evil, simply because you don't know the darkness of the world.
Andrew has now seen a portion of this darkness. Regardless of what others may think, this has opened his eyes. Yes, he is writing his book to fuel his own ego, much the same as Mr. Black allowed Andrew to see the world he lives in.
My worry for Matt is not that he will lose his virginity, but that his owner is not overly endowed - holding out the hope that Matt will be "rescued." That trauma may lead Matt to believe all anal intercourse will be the same. The longer Matt is a slave, the more his views of sex will be perverted. It may become impossible to view sex in any other manner.