Again I would argue that the best system is a voting share system. Each person is given 1 share at their majority and after that they can purchase shares. People with money are contributing members of society will keep and buy shares, while useless people will sell their shares for money (drugs).
To make the system work, first corporations are not allowed to own shares. Second each individual can own up to 0.01% of available shares and no more, with the total amount being the population count. Third, shares cannot be inherited or traded between individuals and can only be sold through a public market. Fourth, have different shares for both the state and national elections. Fifth, tax share sales heavily after the initial voting share is sold.
This will naturally move voting power towards people with wealth, who contribute and are invested over time into buying up shares. People who don't care will naturally sell their shares. This also has the side effect of the people buying into the system being more concerned and informed about what is going on.