Sometimes I wonder if we read too much into all this. The people editing this show are being paid to sit in small, dark, rooms, watching endless hours of undoubtablly boring footage. They are probably told by Fleiss, et. al. a very general outline of what to highlight or leave out. So they sit there, muching Cheese Doodles and drinking bad coffee and string something together that the boss will accept. Throw in some catfights, some kissy-face, some contentious moments, fun dysfunctional family moments, cleavage, bikinis, etc., etc. and voila! -- you have a show.
All the producers really care about is that the show is on the air, and it garners some attention and ratings. That's it. As my co-worker who's been a film producer says -- you make sequels (and extend TV series) because someone sees you made a little money on the last film/show. You only stop when you can't squeeze one more dime out of the darn thing.
Ok, I'm a cynic, especially about "show biz". But I've been around it and its practitioners a lot, and I'm afraid the cynicism is usually justified.