Lord Goose wrote...
By proxy I think, it's The Illusive Man's
philosphy, an idea brought to him by the
Reapers (in comparison with the
indoctrinated Protheans who thought the
same in their cycle).
I think that this idea is his personal. You can compare it to that heretics believed in. Geth thought that Reapers are their gods, and the Reapers themselves were not amused, but since geth were useful they allowed them to harbour delusions. It is a case of argumentum and Hitlerum: even if the idea was shared by indoctrinated it doesn't have to be incorrect.
You may also pay attention that Reapers attacked Sanctuary because of Lawson's research. He may have uncovered something.
"They're too strong!"
"You're stronger! Don't let them win, break their hold, don't let them control you!"
The Reapers are definitley inside The Illusive Man's head, they knew what he knew and more than likely let him do this thing with Sanctuary. By the third game it's a safe assumption The Illusive Man's thoughts are influenced by the Reapers (and moreso as the game progresses), anything he does is either what they
want him to do or what they
allow him to do.
"Interfere with Shepard's plans"
"Nuetralize Tuchanka"
"Implant Reaper tech on your soldiers"
"Hack the Prothean VI and Tell us what the Catalyst is"
"Implant control technology in yourself"
The link we have to Conrol being the Reaper's influence is the Prothean's splinter group that thought the same, hinted at that other cycles have expereinced similar groups by the Prothean VI.