Interesting, I never would have guessed that's how Duchess came to be. Her creator (confirmed to be a boy?) sounds like he could grow up to be quite the business man, scheming or not. He obviously knew how to make a profit. Kind of reminds me of Cornelius Vanderbilt and how he would as a child offer to ferry his friends to Staten Island, but would charge them a fee to ferry them back home to the mainland. Scheming, yes, but he would leave a legacy for his children and grandchildren, and the Vanderbilts would come to be known as American Royalty (they even built castles!). Duchess' creator doesn't sound like he was trying to trick anyone, but he could easily leave a similar legacy if given time. That's some imagination he's got, and he knows how to use his head!
I also imagine his other "creations" weren't near as nasty and heartless as Duchess. Perhaps some of them actually were
good friends to their buyers. So I don't judge him by the one creation that turned out bad.