Nodes and mining

It seems the majority of mining is done in asia and the majority of nodes are in the US or Europe.

Why are we running nodes for free still.

I understand the need for the nodes but there should be some way to give the US and European Miners precedence for mining since we are providing the much needed nodes for zero cost. (EDIT or compensate them for their needed support to keep bitcoin alive)

My concept is this
Split the earth into zones. based on percentages of nodes the miners should have to pay a fee to the nodes based on a reverse concentration of nodes in your zone.

If there are more nodes in your zone you would pay less fees..
if there are less nodes in your zone you would pay greater fees.

The fees would be split between all active nodes and the zone with higher numbers of nodes would get a higher percentage of the fee to distribute to the active nodes for that zone.