Absolutely. One thing I've heard people who live paycheck-to-paycheck discuss is how even if they have symptoms, they don't want to get checked out because of fear of a multi-week quarantine and the catastrophic effect it would have to not get paid after their sick days run out.
Yep, the problem isn't that they don't have a valid point, it's that the flip side of it is when they don't do it out of fear of going broke or potentially losing their jobs (in some industries), but then they go in and spread it and it multiplies so that thousands of people have it now, and you can't stop it anymore.
It's the same thing with parents and sick kids. You hear ALL the time, oh, it didn't seem THAT serious, and I can't take off work, so I sent them in. Now 300 kids in that school catch whatever and spread it to their families to more people and some of them really CAN'T take off work. Some people just have a work ethic that won't let them do the smart thing and take off for themselves or their kids, and just make everything so much worse.