Warsaw: 21° 0′ 39″ E
Athens: 23° 43′ 0″ E
Roughly 3° East. And that doesn't include the vast territory at the east end of the Aegean
It isn't so much the latitude as the mentality, cuisine, traditions.
One only needs to look toward history,
And historically Poland has geographically always been much further east than it is now.
Google has a floor of offices
They aren't a Western European company, they're American. And the have offices in Tokyo - perhaps you're suggesting that Tokyo is Westen European too, Celestyna/Slavia.
Krakow which is quickly becoming the Paris of Poland
Hardly. Either you've never lived in Paris or you've never lived in Poland. Or both.