I think it is good to have the Political Capital and Financial Capitals of a country separate.
Seperate financial and political capitals are found around the world, USA (New York/Washington), Canada (Toronto/Ottowa), Australia (Sydney/ Canberra), China (Shanghai/Peking), India (Bombay/Delhi), Vietnam (Saigon Ho Chi Minh/Hanoi) are some examples.
But it is unusual in Europe, Germany (and Switzerland) are very much exceptions. In Germany, Frankfurt developed as the financial capital, but it could have been Cologne, Dusseldorf, Hamburg or Munich, all bigger cities. When the German Federal Republic was set up in 1949, the the political capital was located at Bonn until reunification, when it was moved to Berlin.
As for hub airports in these countries, they are usually, but not always, situated at the financial capitals. In this respect, Germany is no exception.
Racedo, ever heard of the Berlin Wall and East Germany? I believe Fairdealfrank is referring to that rather than Frankfurt being the financial capital of Germany.
That is correct
Bengt.