In looking at the private photographs you are contributing to a culture in which a woman’s body is available for public consumption, no matter how she feels about it. To me, joining in just because ‘everyone else is doing it’ doesn’t absolve you from responsibility.
To look at the photographs, I believe, is disrespectful to the women, who are victims of a crime, and shows support for the hacker/vile human. In a way, it is part of rape culture, in which a woman’s consent does not count.
Just because these pictures/videos are available to see, does not mean we should look at them. Jessica Brown Findlay is an actress I admire very much, and as a bisexual woman, I do have rather a big crush on her. But I would never be able to find joy in anything that is harmful to her. And I am not curious to see anything that she did not consent to have given to the public domain. I’m horrified by what’s happened to her.
It’s a question of whether you see these women as human beings or objects, I suppose. I see them as humans. Perhaps you don’t.