> Nope. Because they have already paid all of this in taxes. It means, that the 10 bn won't get 'invested' by the government in another project, e.g., welfare benefits, infrastructure, health, or education.

Knowing the German government, I wouldn't be worried about welfare and healthcare (they're too important to get the votes).

But you're right about infrastructure and education. You can throw defence and internal security with that.