cellio | parsha bit: Sh'mot

According to the midrash, When Paro made his decree to kill all male Jewish children Moshe's father-to-be stopped having relations with his wife and then divorced her. Because he was a leader among the people, others followed. His daughter Miriam challenged him, saying "you are worse than Paro; Paro condemned only the males, but you condemn males and females". At this Amram remarried his wife and others followed. (Exodus Rabbah 1:13)

(I've heard this one before, but usually not with the part about the community following his lead.)