Yep, and for good reason: they absolutely should keep working (and spreading the disease around) if they have it, because they cannot afford not to. This is the consequence of having a society where there's no real social safety net to handle crises like this.

Personally, I'm a well-paid tech worker, but even for me, if I'm quarantined, my company policy is that I cannot come to work (nor can I work from home), and I must take either PTO or (if that's exhausted) medical leave of absence (without pay). Luckily, I'm single and frugal, live well below my means, and have lots of savings because I'm somewhat paranoid, so I can easily live for a few months without pay, but this just isn't true for most people, especially people without families who aren't overpaid tech workers like me. So I certainly cannot criticize people at the low end of the scale who avoid getting quarantined: they have to do this to survive. If we don't like this, then maybe we should have done a better job voting for leaders who would handle health crises better and set up social safety nets for things like this.