kakashi did actions in Naruto's stead. nothing would've changed if naruto hadn't united villages, and the leaf would've modernized like every other village did with or without kakashi.Kakashi enacted the most reforms, Naruto hasn't done much.
Hashirama founded the village, even if he was Tobirama's bitch.
The others were :/
Nah, Madara united the villages through the alias of Tobidarakakashi did actions in Naruto's stead. nothing would've changed if naruto hadn't united villages, and the leaf would've modernized like every other village did with or without kakashi.