[fic] The Tower of Yesterday [8-9/?]

[manic-intent.livejournal.com]

Title: The Tower of Yesterday [8-9/?]
Prompt: Role switch, Tony Stark is the WWII hero waking up in a new world, Steve is the modern superhero.
Universe: Iron Man Noir, AU
Rating: PG13 so far
Warnings: None
Beta: No beta

[8] [9]

Yinsen Jr. And Tony's Mind Control

[fictivore.livejournal.com]

I was rereading the Execute Program Arc once again and it struck me. The mind control device Yinsen Jr. was using had been in Tony since just before he became Iron Man. Extremis had nothing to do with it. However, in a lot of fan-fiction there seems to be a somewhat incongruous assumption that Tony's 'easily hacked' mind was the cause of Extremis? Also that Extremis somehow made him less human and was atleast indirectly responsible for his power hungry trip? Why is this? Am I missing some piece of canon regarding this?

Help, please?!