The problem is that economy and politcs are intertwinned . More Chinese investment , means that they will have a better negotiation position . That will lead to free trade deals etcetera , which will mean that the countries most benefiting from chinese investment will be more attracted to look the other way when China does something immoral in politics . If you want a good example , see Saudi Arabia . The most devastating country in the world when it comes to ideology . Yet western countries rarely speak out against saudi ' s agression in yemen , where they have been accused of killin thousands of civilians . Do you know why ? It ' s because those EU countries benefit from Saudi investment and trade . <| sep |> The fuel excise is much easier to use for the same purpose and has the benefit of already existing . And far more inefficient to avoid blurting out unconsidered ideas . Is an extensive inquiry into road pricing by Infrastructure Australia with a clear outline of recommendations an unconsidered idea ? Besides , as another user points out , it doesn ' t need to invade privacy . All diesel vehicles in NZ pay road user charges , the costkm varies depending on the weight of the vehicle . The KMs are usually measured by the odometer , and you have to pay in advance .