Yeah. She was real selfish when she crushed Vision's head or released the town at the end of WandaVision.
In response to your comments on selfishness:
She destroyed the mind stone because Vision begged her to, and it was the only real option -
given Thanos getting the stone meant total defeat for everyone and death for half the universe ( including Vision). It was kind of a choice between Vision dying at her hands and Thanos' plans being thwarted, and Thanos killing Vision and taking the stone - not really a viable option, and either way, Vision was going to die.
When something is your only option, taking it isn't selfless.
She released the town..... she was the person who enslaved and tortured them for weeks, because she couldnt deal with grief. That is an extremely selfish thing to do. Letting them go isn’t an act of selflessness.
In Dr Strange &MOM she's willing to kill America Chavez ( to obtain her power) and anyone who tries to stop her so that she can be with children that aren't hers ( which suggests she's willing to kill her other selves) Wong suggests shes a threat to the entire multiverse.
All of this for what ? Not to save anyone or avert a catastrophe, but because she wants her fantasy back. To me, this is a selfish motivation.
In terms of manipulation:
Tony and Vision tried, did not work. Agatha tried, again did not work. Who has pulled it off?
We only see her and Strucker in scene together once. We do not know how much control he had of her. There is little basis upon which to form any view as to whether he was able to manipulate her or not.
At Ultron's behest she incapacitated the Avengers and sent an enraged Hulk into a populated area.
The only reason she stopped doing Ultron's bidding was that she became able to read his mind when he uploaded a chunk of his consciousness into the android body that became Vision. She saw that his plan meant the extinction of humanity, and that changed her mind about doing his dirty work.
Up until that point she was successfully manipulated by Ultron.
Not sure what you're referring to with Tony and Vision trying to manipulate Wanda. Tony and Vision tried to confine Wanda to the Avengers compound during the events of Civil War. Not sure that could be characterised as manipulation- but if it is, its a pretty low level manipulation, and not very subtle. Personally, I'd describe it as confinement.
Agatha. Well, Agatha was quite successfully manipulating Wanda, feeding her delusions during the events of WandaVision, until she confronted Wanda directly and the Scarlet Witch was just too powerful for her to handle.
Some have suggested that the Darkhold manipulated Wanda - hard to say, its a book rather than a being but much like Tolkien's ring of power it has the ability to corrupt. After taking the Darkhold she certainly committed more and more heinous acts. If corruption could be considered a form of manipulation, by shaping someone's personality, then the Darkhold was very successful - as the ill-fated Illuminati found out.
Ultimately, Wanda decided to destroy the Darkhold, which is a noble act - because her other self's children rejected her, rather than out of remorse for the mass murders or other prior misdeeds. But in a sense we can say she finally broke free of its control.
To assert that people's attempts to manipulate Wanda simply didn't work is problematic, because manipulation isn’t an either or proposition.
Ultron, Agatha and the Darkhold were all
were partially successful in manipulating Wanda.
It is correct to say that she eventually broke free from being manipulated ( in particular with Ultron and Agatha)