For fuck's sake. Don't people like work at work anymore?
In contrast, something like a machine shop (random example) won't be politicised much if at all, because the work doesn't revolve around making political decisions.
During machine down time I've heard some of the most radical Stalinist politics coming from people who you would think are only interested in football and beer while trying to fix the lathe for an order that's due in 3 hours. By the same token I've heard some of the most extreme fascist views too.