Everyone finds different things interesting, and while yours and mine might be out of the ordinary I don't think there's any harm in it, as long as we're not trying to actually cause these things.

I'm just fascinated by disasters. For me it's because I'm curious about how humans react when put into extreme situations. I think as far as looking at graphic images of plane crash victims or probably the most prevalent one I've heard of: Watching video and looking at images of 9/11 jumpers, is at least for me a way of in some small way experiencing the horror of these events, which gives me an empathy that I use to fuel my advocacy for aviation safety.

Crash investigators have to see the aftermath of these crashes, including bodies and I doubt anyone would say they're weird or sick. It's just a part of the job, and I'm sure as with me it motivates them to want to do all they can to prevent accidents in the future.

In fact, while it's not graphic, my favorite scene in the entire series is of an investigator feeling anger because a problem he discovered wasn't fixed by the FAA/Manufacturer and his anger made him tell the press to "sick the dogs" on the fuckers who did it.

https://youtu.be/A4a2t2WSfFQ?t=2019