This applies even to talmidei chachamim whose kavod many are mekil in. Since gaw started it, I’ll write a partial list for the olam’s reference:
Rav Yoshe Ber Soloveyczyk the second (nobody but nobody is mezalzel his great-grandfather the Beis haLevi who he is named for)
Rav Herschel Schachter
Rav Aharon Lichtenstein
Rav Avraham Yitzchak Hakohen Kook (“the” Rav Kook)
Rav Tzvi Yehuda Hakohen Kook (his son)
Rav Avraham Yeshayahu Karelitz (Chazon Ish)
Rav Yoel Teitelbaum (Satmar rebbe)
Rav Menachem Mendel Shneersohn, the second
Rav Henkin (both father and son)
And l’toeles harabim, I would like to remind everyone that it also applies to talmidei chachamim who are not famous.