Frankly, I'm OK with trading off massive economic growth and reduction of human misery, including conquering darkness itself, in exchange for having to take a trip out to the country if you want to go stargazing.
Even more frankly, I'm not sure that availability of stargazing is a universal enough aesthetic preference, compared to extremely widespread desire for nighttime illumination, to give it any significant policy weight at all.
Maybe its value is beyond your reductionistic analysis. For example, light pollution impacts bats which pollinate flowers which only bloom at night (cactus, etc).