I think it matters beyond individual’s morals. Caring (or not) for people who get dragged down by dumb decisions of others arguably has consequences beyond just your opinion on these people.
These dismissive opinions on people living in a certain town / state / country / etc. could change your perception of the magnitude of the problem, for example. It’s easy to brush the whole problem aside when you simply decide that it’s just a bunch of idiots getting what they deserve. From there it’s not far to “this would never happen in my place”.
It could also lead to wanting to silence discussion about the issue. After all, that people get what they deserve is just right. What’s there to talk about?
It’s also very hard for me to believe that people with this mindset don’t also judge individuals from that place. Which again has consequences…