There's a piece in the Guardian I've just read that brilliantly sums up my feelings:

The Greek shipwreck was a horrific tragedy. Yet it didn’t get the attention of the Titanic story
Arwa Mahdawi

From that piece:

"Here’s the thing: unless I’ve severely underestimated the number of billionaires with a death wish, I think this is the last story we’re going to see about obscenely rich people going missing in a submersible for quite a while. But I’m afraid I can almost guarantee we’re going to see plenty more stories about ships carrying migrants capsizing.

If anything good can come of these two tragedies, I hope it’s that it makes more people rethink how we value human lives. I hope it makes it uncomfortably clear that, in the eyes of the media and policymakers, one missing billionaire is seemingly more important than hundreds of missing migrants."