Yeah, the UK and Germany are rivals and currently the UK has the advantage in leverage. The beer purity law is an interesting issue in this case, exemplary I would say. Since the processes of industrialization started to become potent and the mainstays national economies, there has been a clear rift in German thinking and British thinking. Even if the wars didn't happen somehow this issue would come up in one way or another. Germans prefer to produce less, but high quality, hence laws like the beer purity law and competition for quality. Anglos would rather produce a ton and then choose form that mass what they can most easily afford, this makes for competition for price amongst makers of goods. The USA adheres to this model and so does China, their major Trading Partner.

The German model is a lot closer to Slavic thinking than the Anglo one is. Even as the 1990s and 2000s set in with rampant capitalism, many Polish products refrained from the mass production model, while still enjoying the new found production freedoms. For one, the great Polish breweries are almost all private now, but have kept their classic logos and you can get them in nice bottles. In the US, this is a rarity, it's mainly huge 36-can cartons of "wasserbier."

The Brits don't fear German power (they like to put it that way since it is a stone's throw away from war guilt), but they fear the German model of economy and in this world, economy is influence, thus making it (de facto) power.