Would she still be insane or jump back into sanity?
You're going to regret asking me this. MKULTRA is (now) a blanket term for "Mind Control" ops. There is footage of GIs doing training under the influence of LSD, this was actually the Edgewood Arsenal experiment (IIRC), that would certainly kill Elaine (she is lazy and also scared to go outside).
Originally (I told you you'd regret this) the MKULTRA projects came about due to the "Manchurian Candidate" threat from the Commies
Fears of Communism during the Cold War spurred psychological research, pop culture hits, and unethical experiments in the CIA
www.smithsonianmag.com
Basically the main aim was to create Manchurian Candidates (recommend watching the film, one with Sinatra). Does Elaine having a personality disorder help? Probably. Does the fact she's a chocolate teapot? No. Y'see, it's about "programming". You break down the "personality" and "program" in another one.
A digression...
Did you know that Cary Grant was an advocate for LSD? Learn more about his interesting life and his experimentation with LSD.
www.historydefined.net
Cary Grant used to spike people's drinks with Acid, because at the same time the CIA was the biggest buyer of LSD, Cary was lauding it's benefits (in the long run, more people died from LSD than were saved... from suicides years later*) in psycho-therapy.
*Although... The "Golden Age" of modern serial killers happened around the same time as MKULTRA and "Killology". And Acid was "happening" at the same time...
Not that I think Elaine is capable of becoming a serial killer... but... have you ever watched Videodrome?
I doubt I've answered you question, but Elaine will now, at least, watch a couple of decent movies (Manchurian Candidate has Angela Lansbury as the ultimate Domineering Mother), but the dinny moo will watch the Denzil version (which is good, but... Y'wanna know something strange? Sinatra also starred in Suddenly, a film about a guy who is going to assassinate a politician with a sniper rifle... these films are just before JFK on Elm Street. JS)
tl/dr: Elaine is too much of a silly cow, even to wear a Polka Dot Dress (RFK for the thick Kwiffar reading), but people will still try to "program" her. On a hiding to nothing.