My two cents' worth:
I strongly dislike routes going down the, "She looks exactly like Monica, sounds exactly like Monica, knows everything that Monica does, and behaves exactly like Monica, but, for mysterious reasons, she isn't Monica," lane. Biff. Mrs. White. Amongst others. Now, Steve has headed down that lane. Ryan, the photographer, is headed in that direction, too. Wouldn't it have been better if everyone knew it was Monica, but, at the same time, had the knowledge that Monica was down on her luck, and, consequently, were eager to exploit Monica's situation to their advantage?
Take the example of the office guy. He gets to fuck Monica. Fuck his own boss. And, obviously, derives immense pleasure in doing so. "Man, I just got to fuck my own boss! My own arrogant, conceited boss! My desires, my fantasies came true!" Now, imagine if he had fucked Monica with the knowledge that it was not Monica, but a mere $300 hooker that looked like Monica. It wouldn't have had the same impact; it would've merely been a roleplay.
The photoshoots are another example. What got the staff gossip going was seeing their own boss with her tits out on her own magazine cover. However, imagine if they had the knowledge that it wasn't their boss, but simply a hooker that looked like her. It wouldn't have had the same impact on them.
I feel it would've been far more exciting if people had exploited Monica, not her look-alike from the slums. A down-on-her-luck Monica and Mrs. White, for example, where the latter is aware that things have gone south for Monica and is eager to exploit Monica's situation to her advantage would've translated into much more exciting and steamy scenarios.
Bottom line, the story should not only be about Monica's humiliation; the feelings and emotions Monica goes through, but also about the pleasure others take in humiliating and/or enjoying Monica, knowing it is her. Like Fred, the Fuck, for example. Note the sly look and grin on his face, how much he enjoys his former boss's downfall. Or Adrian. How much he enjoyed his encounter with Monica at the hotel, with the knowledge that it was Monica. Or Phillip.
Let everyone enjoy Monica, knowing it is Monica.