I've seen a lot of snark about the death of "rich people" not mattering, or that they deserved it for engaging in such frivolity. Maybe it's because I'm kinda rich, but I don't agree with that reasoning.
I think that frivolity is good, and that it's much better for rich people to spend their money than to horde it. Now, we can quibble about whether exploring the Titanic is as useful a frivolity as, say, spending money at a fancy restaurant, but they're at least in the same broad category.