Wasn't it a scene in Lain's mod where the MC says to Ellen that no male tenants should be allowed? I mean, the only male we see make a move on Moon in the bar gets a punch right to the jaw.
Cornwall's associates during the challenge are mostly scum. Runey seems to show the rest of the males in this game as evil, perhaps with the exception, for now, for Kali's father. He could be an ally, could be an enemy. The other males in this game are not shown in a very positive light. Most people, outside of the hotel, are not having god-rays of sun shine on them; the doctor at the hospital during Maria's "arrest," the teacher in Ashley's class, even Jia is powerless and controlled by those around her.
The point I'm trying to make is that the hotel is literally a safehouse from the rest of the world around it.