> Keep in mind that in this case, even a perfectly functioning democracy may not give you the result you expect

I don't expect to fully know the will of the majority. If the majority think that clearer skies are great, and let's say that took a significant amount of finances to happen (not sure that it would), people might think that lower taxes are even better. Democratic government is just a vehicle for enforcing the interests of the majority, and I present it here as the potential avenue for reducing artificial Night Sky Brightness (in answer to GGP), with the premise that this is actually in the majority interest.