Mcculloch v maryland who won

Why do countries create guidelines and laws on how a country is going to be run?

Kublai khan honored his mongol heritage by: a)marring only one wife b)praying facing mecca five times a day c)slaughtering ten chinese officials every year d)building a large enclosed hunting ground at shangdu, his summer palace

What could have been done to stop the illegal voting? what about the violence?