Between WWI and WWII, Poland didn't demonstrate such a exemplary democratic tradition. Nor did it treat its minorities, such as the Jews that well either. Perhaps this can be partially explained by the ravages of the great depression and the large areas absorbed from Russia (with large populations that were not Polish) after WWI. However, it was hardly a democratic "tradition".

Poland compared poorly to countries like Czechoslovakia, Estonia and Latvia. But was certainly better than Romania.