This is an example of the social power bosses have over workers. Workplaces are effectively private tyrannies It is systemic coercion. Risk your life in the snow, or lose your job—and then maybe your home, possessions, go hungry, etc.
That most of us need to work for a boss at all is to avoid social stigma, going hungry, or homeless. There is no simple alternative to this. There’s no living in the woods, or being self-sufficient: practically all land and resources are monopolised by owners.
One can maybe find a more amiable boss, but this is difficult, and many people can’t even afford the time to look for a different job. Not that there are many jobs actually available or easily obtainable, and focusing on the character traits of individual bosses ignores the systemic coercion.
I think there are a few scenarios which would alleviate this problem of being forced to risk your life to work (and having to work to live—the irony!)
A more “liberal” government is elected, and they create laws obliging bosses to give their workers time off work during dangerous weather.
Union membership increases to more effective levels. Collective bargaining is used to equalise the imbalance in social power between bosses and workers, and workers tell bosses that they’ll be having their time off work during dangerous weather, and if they don’t like that, they’ll go on strike.
The most ideal scenario is one where there are no bosses, and workers control the means to create wealth themselves, and can rationally decide whether to work in dangerous conditions or not, without threats and dictates from a boss.