I've been thinking about this a lot and this makes a lot of sense that this would happen sometimes. Any being sensitive to thoughts may accidentally or purposedly repeat phrases like this as a way to be persuasive. Molly is a very sensitive person so it makes sense that she would be able to do it. While I suppose we could make the same argument about Maeve and Ramirez because they're magic users, I think there's another intriguing possibility: Carlos and Maeve were both infected by Nemesis and did it on accident.
Maeve being Nemfected a strong possibility given that she almost blew up Demonreach and that was the explicit goal of Nemesis in Battle Ground. She was also the very first target of the Starborn Winter Knight.
I think that there's a decent argument for Carlos too. First, we know that Justine was Nemfected and had to be infected by someone. Carlos had a few minutes next to her in White Night while Harry was listening to the WCV debate the merits of the crusade against low talent wizards. This was also around when Justine became close to Lara. Second, we know that Carlos was nearby a Cthulhu cult in Cold Case. He says that he got a report from Elaine to check it out but that's an easy cover story to make up. Third, we know that at least one shadowy organization tasked an attractive, respected, and talented White Council Warden to become close to Dresden in order to keep an eye on him. Would it be strange for another party to do something similar? Fourth, isn't it weird that several experienced Wardens fought Black Court Vampires in Battle Ground and only Harry and Carlos survived? Fifth, isn't it odd that several of the stories he prominently features include Outsiders? War Cry, White Night, Proven Guilty, Cold Case, and Battle Ground/Peace Talks all have Carlos and all have Outsiders. The only one with a lot of Carlos but no obvious Outsider influence is Dead Beat. That one is centered on a conflict with Kemmler's disciples but would it shock you to discover Kemmler made a deal with Outsiders? Maybe one Kemmler's disciples was Nemfected and that's how Carlos got Nemfected. Sixth, he's repeatedly mentioned as the youngest to every reach Warden Commander. It wouldn't be surprising if the Outsider gave him help to accomplish it.