Can lewd pictures and videos that non-consensually ended up on porn sites hurt my career in academia/industry?
There are probably very large regional differences here. If you apply for jobs in very conservative areas, you might potentially face a larger back-reaction. That is, if it comes up.

I would say that I am from a quite liberal area of the world. I have been on several hiring committees, both in academia, and before that, in industry. I have never been on a hiring committee that searched through porn sites for pictures of a candidate. And frankly, I would be surprised if a member, who would have come across such pictures on their own time, would bring it to the attention of the committee.

And a personal perspective: Try not to worry too much about it. Everybody has a past. I can tell you that I also have naked pictures of myself online, not from porn, but from a reality-docu that aired on national television many years ago. Once I have had students mention it, and I simply said "yes, how did you like it?". And nothing more came of that.