There's not really a relation between the two. A lot of systems have taxes and no vote (see medieval European society for example). And in a lot of current cou

There's not really a relation between the two. A lot of systems have taxes and no vote (see medieval European society for example). And in a lot of current countries, your vote is not linked to you paying taxes : for example in some countries very poor (and it's somewhat true of very rich as well) people pay little to no taxes, while sometimes getting a non negligible amount of money from the government, amounting to the opposite of paying taxes in a way. They still get a vote, exactly as valuable as one from someone paying a lot of taxes.