I don't know how right it is to blame anyone in particular for this specific security flaw (I don't even know enough details to start to analyze that), but I don't think this is an appropriate comparison either way. Purportedly the NSA is supposed to be acting on our behalf, in our interest - they are given a huge amount of access to our internet infrastructure, and as such we're trusting them not to misuse that access; when they abuse that power, it's a betrayal of trust. No one is trusting these random hackers with their data - they just took it because they found a security hole they could exploit. It's not something anyone's encouraging (it's illegal, for one thing - we do actively try to stop these sorts of things), but you don't usually get mad at your opponents, you just try to work to prevent them from getting you again next time.

I think the comparison would be more apt if these pictures were leaked by some IT guy who had been given all these women's phones and passwords and he abused his position to get the pictures. I think you'll even see some anger at Apple if it turns out that this is something that could have been easily foreseen ahead of time (e.g. poor security practices in general). My guess is it's going to end up being social engineering and weak passwords.