Rabbi Noson Weisz at Aish.com writes... (a brief excerpt)
As long as the Temple stood, Israel was a spiritual power. It was the nerve center of the world, a culture that exported ideas. The nations looked to it for guidance in matters of spirituality. The Jewish people were spiritual trend setters and role models. The destruction of the Temple turned us into a minor tributary along the cultural stream of the world. It is the super powers of the world that export their culture to us instead of the other way around. It is their spiritual agenda that defines what is politically correct.
BS"D - בסיעתא דשמיא