Emunah Of A Prostitute vs The Generation of Knowledge

Rabbi Yaron Reuven asks, how can it be that a prostitute can have a higher level of emunah in HaShem than many in the Generation of Knowledge that witnessed first hand the miracles of HaShem? That Rachav, who was a prostitute has Gan Eden, while Korach and his followers who were some of the greatest Rabbis of the generation are in Gehinnom??