@ibushido: My point is that the fact that a certain game gets enough upvotes on greenlight - a popularity vote - actually tells us something about the society we live in. In Hatred's example the information conveyed is that many people don't have the problem with portratying a violent character in a video game, and, of course, anyone who plays them knows it to be true.
So the idea that a rape game gets enough votes on greenlight makes the underlaying assumption that the gaming community has many people comfortable enough with raping someone in a video game to support such a game being made. And, at this point, I would argue that's not true (at least not in the western market).
In other words, your scenario isn't 'if I made a rape game and it got greenlight, would steam deny it being made', it actually is 'if the gaming community was comfortable with raping people, would a rape game be permitted on steam'. And by that point the answer would probably be yes.
But you're kinda ommiting the fact that your scenario REQUIRES THE GAMING COMMUNITY TO BE OKAY WITH RAPING PEOPLE IN A VIDEO GAME, which is obviously not the case as of right now as often even having sex in a video game leads to outcries and outrage.
You also seem to think that enough people would be willing to pay for a game with 'no audio or images' and just plain text. Which is also obviously not the case.
I have no problems with using hypothetical scenarios to show your point. But all hypothetical scenarios have underlying assumptions. And if the scenario has enough assumptions that are completely in opposition to the current state of reality, and no attempt is being made to justify these assumptions, then perhaps the scenario is just not worth entertaining.