Juliette is a lightweight. All brute force, no nuance. Sam and Mercy are just rabid dogs. They want to immediately bite into everything they see. Juliette may not be rabid, but a well trained dog that can sit and wait is still a dog.
For example, the boat scene. Juliette thinks that's evil? I'm not even a sadist, but the first time I played that scene, literally within seconds, not even taking time to think about it, I would have suggested the following to her;
Make the guy fuck his sister while the girlfriend is on the machine. Whichever one (girlfriend on the machine or the guy) finishes last, gets dunked for 2 minutes. Then, the real fun starts.
The guy has to pick one of the girls. Whichever one he chooses will be free to go, not just from the ship, but from the Karlsson Group entirely. Hell, she'll even be set up in Cape Town with a reasonably cushy life. Whichever one he chooses to condemn, he has to choke with his bare hands. If he refuses, all three of them die. Whether that be through pain lvl10 or a more creative method (realistically in game it would just be the pain lvl, I doubt Tess is giving the player a potato peeler). Obviously he'll do it in order to save whichever one he loves more, and to his understanding, to save himself as well.
Then comes my favorite part! After the unlucky lady is dead, inform the other girl that she is indeed free to go. As soon as she drowns the guy. His conditions were made clear, but I never specified what the girl's conditions were. Once again, the alternative is torture to death. She drowns the guy, and VOILA! She's free to go! After all, I'm a man of my word. Have Mercy take her back, politely remind her to keep her experiences to herself, and send her on her way to enjoy her new lifestyle.
Now of course, that's just temporary. Can't have company property running around, can we? Have one of the staff assigned to wherever the girl is sent. Make sure they work together, become survivor girl's friend, earn her trust. Wait until she's finally starting to move on. The nightmares aren't as common, maybe she's found a nice guy. Once that has happened, bring our little lost lamb home. Maybe even have her beloved bestfriend and brother/lover waiting for her! Or whatever is left at that point I suppose.
Like I said. Juliette is a dog with a bone. She has no appreciation for art.
Death should never be quick. It should be an opera.