Dark tourism is a thing. It takes in the sites of many atrocities, disasters like Chernobyl, the likes of Pere La Chaise and Highgate Cemeteries; even notorious suicide spots like the Golden Gate Bridge and Beachy Head.
Auschwitz touts itself as a memorial as well as a museum, likewise Ground Zero. But I don't think this is just about paying respects. There is a form of morbid curiosity about it that's sometimes even akin to prurience, which exists about death as well as sex.
Titanic seems different from a well-ordered cemetery. Its victims, like those of the Holocaust, received no funerals and just lay where they fell. There's something even more immediately poignant about this, particularly in the images of clothing with shoes immediately next to them which were obviously all that remained of a person. Even 112 years later, I believe such an image should never be published.
As to the missing Titan - from the name you can see why seafaring folk are so superstitious - the laissez faire methods used to control the thing are nothing short of shocking. Sadly it seems this was a tragedy waiting to happen. It also seems extremely unlikely that any of those people will come back.
It's an appalling thing to happen. I hope if nothing else they review this practice and the wreck - about which it's unlikely anything more can realistically be discovered - can be left in peace. The day it finally disintegrates will probably be best for all.