Why Paris, Paris, Paris for fashion, and not Warsaw?
You might as well carry on:
Why Milan for the Prêt à porter and not Warsaw
Why the City of London for capital markets and not Warsaw
Why Ibiza for the coolest parties and now Warsaw
Cause Warsaw is a grey and dull post-communist city that most ppl wouldn't be able to locate on a map.
Also, things develop over time and cant just be legislated or imposed. Fashion in Paris started in the end of the 19th century, Ibiza's culture was built by the early hippies who went there in the 70s, and London has always been a major financial hub since the days of the British empire.
I admire your enthusiasm for the city of Warsaw but u have to admit that some things will never happen. Prague, for instance, is a much cooler place with a lot of chic, flair and a vibrant city life.