On the main page of CNN:

Tom Perkins suggested Thursday that only taxpayers should have the right to vote — and that wealthy Americans who pay more in taxes should get more votes.
The venture capitalist offered the unorthodox proposal when asked to name one idea that would "change the world" at a speaking engagement in San Francisco moderated by Fortune's Adam Lashinsky.

"The Tom Perkins system is: You don't get to vote unless you pay a dollar of taxes," Perkins said. "But what I really think is, it should be like a corporation. You pay a million dollars in taxes, you get a million votes. How's that?"

That would be a great idea if only for one important fact: The social greatness of many of the humans in the past, present, and future has been undervalued by money. Monetary wealth is simply a poor measure of social worth.