In his quest to make his country the undisputed leader of the global economy, China’s President Xi Jinping can learn a lot from his next-door neighbor, Russia’s President Vladimir Putin. Not about what to do, but about what not to do. Except Xi just doesn’t seem to get it. As we speak, Putin has been putting on a cram course of a clinic that you would think would be helping his nominally still-communist neighbor figure out how to out-capitalist the capitalists. Someday in the not-far-off future, Xi’s China could prove capable of capturing the global economy’s statistically figurative golden cu…