Once the game is completed it should have multiple paths depending on your karma. High karma basically means you care about the girls, while in low karma they're just a means to an end.
These paths should drastically change the story, they're not just a couple different words or renders. Instead of developing all these paths at the same time the dev chose to develop the high karma path first, until that reaches it's conclusion, and after that the low karma one. There could even be other paths, we don't know.