The thing is that in the US and increasingly in the UK, if you're sick it's considered your own fault, responsibility, and expense. Employers do not care about you, if you do not work they do not want you.
From a purely utilitarian / capitalist viewpoint it makes sense, why pay for a service (an employee) if they do not provide? But there's a difference between an employee and a contractor. And it's not a human way to deal with things.
So in the US, since people lose their income and possibly their job, they can't afford to take rest, they'll take some medication to power through it.
In my own country, thankfully, we get paid time off if we're sick. If we're sick long-term (I don't know what the cutoff is), the employer has to pay us 70% of wages for a year, after which the government takes over (this used to be two years). It really blows for the employer, but in a lot of cases, it's the job that makes you long-term sick in the first place - workplace accidents, overwork, etc. Overwork / stress was the one for my previous employer, the department managers had multiple roles (people management, account management, hiring, finances, etc) they had to juggle simultaneously and for quite a few, it became too much within 6-12 months. To manage it, the employer offered a subscription to some meditation app, instead of reducing workload or making it OK to go offline outside of working hours.
I mean I remember getting a text message at 3 in the morning from a manager telling everyone to not forget to bring some post-its and sharpies to the all-hands meeting the next day. That guy ended up sick for 6+ months after which he quit and became a manager somewhere else.