That itself though speaks for a broken company culture. If one part of the company is completely disaligned with the values of good engineering, why should anyone still trust the company as a whole? It seems they at the very least severely lack a good vision then, to uphold the company values or what should be the company values.

That’s how megacorps are. VW has almost 700K employees. Enforcing a company culture on that scale is a very diffuse and difficult thing. If you are evaluating whether you should trust a company based on their ability to enforce values throughout all their orgs, you really shouldn’t trust any company unless it’s a tiny one where this sort of thing can be a lot easier to hold the line on.