I don't think you're addressing the meaning of the immigrant example. If an immigrant can successfully experience one culture at school and another at home, it'

I don't think you're addressing the meaning of the immigrant example. If an immigrant can successfully experience one culture at school and another at home, it's also possible to experience one culture at work and another culture the rest of your life. Whether or not you group both cultures into a greater "working man" culture is kind if irrelevant to your original point that a company culture would invade the rest of your life.