Some species of animals use celestial features to navigate or coordinate mating behavior. I think the most notable are sea turtles, whose hatchlings may be confused by artificial lights.

Somnologists also care about light pollution, particularly the colors. One hypothesis is that artificial lighting interferes with health sleep patterns and behaviors.

Bombardiers on nighttime missions do like to have lighted targets to aim at.

...it's not an issue that motivates many people, no.