Personally, I'd have a hard time labeling Lady Macbeth a victim. In many ways, Lady Macbeth is the real mastermind behind the murder of Duncan, and the source of Macbeth's ambitions. When his resolve wavers about their plans, she doesn't hesitate in attacking his sense of manhood:
What beast was ’t, then,
That made you break this enterprise to me?
When you durst do it, then you were a man;
And to be more than what you were, you would
Be so much more the man. (I.vii.52-56)
She doesn't stop there. She provides vivid imagery to show her husband what she's capable of:
I have given suck, and know
How tender ’tis to love the babe that milks me.
I would, while it was smiling in my face,
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