Drash: Beit Hillel was not chosen by God since their beliefs were more correct than Beit Shammai's, but rather because Beit Hillel recognized that their ideology was just as valid as Shammai's. They taught Beit Shammai's ideology before sharing their own which showed Beit Hillel's objectivity since they didn't impose their ideology on anyone, but rather presented both ideas in an unbiased way. It is important to recognize that multiple valid opinions can exist, and personal beliefs regarding a specific halacha vary since it's up to an individual's interpretation. Furthermore, God's only role here is that he provided us with the resources to analyze, and therefore it is our duty to interpret texts and form strong, inevitable varying opinions.
