i am from greece this is your opinion not the truth. the large penises represented the uncivilized and the barbarians. even in comedies the silly characters always had big penises for this reason. the small penises were aristocratic and culturally magnificent. so what I imagine is that he wanted to show that barbarians-big penises have only sex in mind, not for example education. also the penis does not prove anything, for this reason they had small penises champions even gods.