We're going in circles now, and you keep putting words in my mouth.
Funny enough, there are reasons people steal. Doesn't make stealing right. People don't become mass murderers without some extremely fucked-up shit happening. Doesn't mean we shouldn't lock them up. But this analogy is terrible, because the woman violated no law by sending nude pictures to someone.
What you're saying is akin to saying that a murder _victim_ should be blamed, just a little bit, for being in the place where a murder was happening, and that's bullshit. Or that a mugging victim should be blamed, just a little, for handing over their wallet when faced with a gun, or a knife, which is equally bullshit. Or that someone in a subordinate position, like a student, should be blamed for doing what someone in a position of authority, like a professor, told them they had to do (and since sharing pictures is legal, as I mentioned in the previous paragraph, Godwin's Law doesn't apply here).
So when someone (I'll use "she" in this example) is told to take nude pictures or she'll fail the class, or she'll get fired from her job, or she'll go to jail, or she'll be killed, it's her fault if she capitulates, but not her fault if she fails her class, or gets fired from her job, or goes to jail, or dies?
Anticipating the next go-round this circle: "Well, failing the class isn't as bad as dying, so you're blowing things out of proportion." Do we know her academic situation? Was this a required class? Was she on a scholarship or financial aid (they've got pretty strict performance requirements)? Is there really no reason she might think that the consequences of not doing what the professor said would be worse than doing what the professor said? Can you not imagine any scenario?