Leonardo the Magnificent wrote...
Great, the thread has been completely derailed. And if the Citadel does indoctrinate, then that means the practically every major character has become indoctrinated to an extent.
I already said this back on the second page, and several other subsequent times. It's not the amount of exposure to Reapers/artifacts that creates indoctrination - it's proxmity that
allows a person to become idoctrinated.
Take Object Rho as the Prime Example - the burst of energy you see? That's Harbinger purposefully creating a connection to the person in question (on this it happened to be Shepard) so that he can begin the process of indoctrination. Through out the battle that ensues, Harbinger talks
directly to Shepard, and Shepard is capable of resisting mentally to Harbinger's advances.
The books established that indoctrination becomes easier should mental barriers be broken down (hence why TIM kept Paul Grayson hopped up on Red Sand). It is also the reason why the Reapers use things such as EMF's when attempting Indoctrination
- they want to break down any psychological resistances the individual may have.
Example, the Farmers/Powell on Eden Prime talking about the horrible noise emitted from Sovereign - they were rendered almost unable to think. If we assumed this meant they were indoctrinated, then why didn't we ever hear about any of them again, coming back as servents of the reapers? Because they weren't actually indoctrinated - they were just subjected to a form of psychological conditioning.
Rana Thonoptis is another great example of this. When we meet her in ME1, she has been exposed to all of the tech of indoctrination, but has not been indoctrinated. It takes YEARS after the intial exposure for her mental capacities to become worn down enough that she begins to accept the Reaper doctrine as her own. The moment she accepted that she needed to blow up those Asari officials was probably around the same time she had been
actually indoctrinated.
This does not mean that everyone needs the same amount of "exposure" to become indoctrinated (IE, Garrus and Shepard encountering the same artifacts for the same duration would not necessarily mean that both would become indoctrinated at the same time). No two person's will power can be broken in quite the same manner.
It makes sense, then (narratively speaking) that Shepard has not been indoctrinated until ME3. We are shown Shepard to have a very fragile mental state (having nightmares, being worn down to a noticeable state of exhaustion). Before this, Shepard has been shown to be a very strong minded person (several characters comment on this, such as Liara in ME1 with the mind-meld, and Dr. Chakwas in ME2 talking about how even death could not change a person like Shepard).