In unnecessarily complex and patently contrived situations, it becomes difficult to apply simple logical assumptions. Especially in a situation like this, there's no appealing to Occam's Razor, because even the simplest possible explanation has had its entities multiplied beyond the boundaries of common sense.
With that said, I'm surprised that the current circumstances don't seem to have lead anyone to the inevitable conclusion: people who can kidnap us, make us believe or experience all sorts of events that don't conform to basic rules of either ethics or physics, and keep such an assortment of people confined on the island obviously have the technology to spy upon us constantly. These fabricated novels, games, and movies are quite simply their own false alibi, meant to help us accept their ludicrous contention that we're all fictional characters.
Please, don't be taken in. All it means is that we were kept under observation for some time before being shanghaied to the island, and any dramatic retelling of our past is simply a surveillance record that's been dressed up like a piece of fiction.