“Germany is demanding control over the economies of all these other countries.”
No, they want the EU to take control. Something compareable to a combination of the IRS and the GAO.
Unlikely they will give them direct and fully-independent control, especially over Germany, whose constitutional court already declare that the Grundgesetz is superior law to the EU law (funny enough, that is not what the Treaty of Lisbon claims). The EU is merely a proxy for Germanys ambitions. Why do you think that the Irish budget was reviewed by the Bundestag before any other body (primarily the Irish parliament) got to see it?
No, they want the EU to take control