Wow, I never saw that. It's obvious in retrospect. Sovereign must have been laughing. "In return for fighting against organics, I will give you....exactly what's going to happen to you anyway!"
That's what Sovereign seems to do with everyone.
You wanna fight? Ugh, fine, but you'll still ascend at the end of things.
You wanna struggle? Cool, I'm ready for it, but ascension is all you're struggling for.
You wanna join me? Great, I'll give you more of a front side view of the Harvest.
~~~
And then I have my personal theory that an indoctrinated person is actually uploaded/'saved' into a Reaper, and the 'indoctrinated identity' is just a 'code copy' that is a jerk slave (see: EvilNezia and how she describes her mind) that is created to be so evil it should die anyway.
This came from Leviathan lore.
But if true, it would also make the indoctrinated Prothians left to stave, also 'slightly justifiable', since the 'real' ones were already 'saved' in Reaper form. They were used as tools while the real Prothians were made into smaller Reapers. Or left to starve. Or genetically modified as Harbinger's science project.
But that's maybe just fanwank.