It's very important. As I said earlier, the workplace is not just an institution. It's also a living environment. The workplace, for instance, has an influence on identity.
I have not conducted many workplace studies, but I have done a study for the federal government to determine the language in which public servants wanted to receive their training. I analysed their networks of contacts and looked at linguistic vitality indicators for the areas they came from. The percentage of public servants who wanted to receive their training in English was unbelievable. They said that because they spent most of their time working in English anyway, they might as well learn the vocabulary they would have to use.
The end result was disparaging their own language to succeed in the public service.