Now you're starting to annoy me seriously. You accused me twice of not reading properly
Well, let me read it again and quote you:
It's possible, sure. But most engineers, consultants,...have to deal with people from outside the company and thus, the language rule applies.
Maybe if that consultant works for the NATO or the EU and mostly works within what is basically that international context with English as the leading language but that's still not a given in every situation. If I contact the NATO or the EU here in Brussels, it doesn't take long to get somebody on the phone who speaks Dutch.
If you're outside the NATO or the EU, you learn Dutch or go elsewhere. I hear many expats in shops in Brussels who speak French or Dutch. It's not often not fluent, it's rough around the edges, it's with an accent (an Irish person who speaks French makes for a cute accent) but they do bother learning it.
That law applies to jobs, not every citizen who lives here.
Yes, you said it's possible and then you said it's just inside the NATO and EU. I was mostly responding to the bolded part which I don't think is true. Now you have amended this by saying
Not a lot of people work in a bubble within their company.
and I can completely agree with that. So we can end this discussion here.