N0m: I’m not sure what you’re trying to say. But Rav Aharon, the Satmar Rav and Rav Moshe are THE reason Yiddishkeit is what it is today in America. All three were multifaceted across the Torah world, of course, but Rav Aharon made the Torah and Yeshiva world what it is today, the Satmar Rebbe made the Chasidus world what it is today (and ensured any Jew, of any affiliation, would be proud to walk in the streets and offices of America unabashedly and noticably from a mile away dressed as a Jew, something that was sorely lacking in America) and Rav Moshe made Psak Halacha what it is today.
They were THE three Gedolei Yisroel of that caliber in the postwar world of chutz la’aretz. They are responsible for ensuring the prewar Torah world of Europe continued in postwar America.