Rolling little balls for no reason cannot be compared to insects trying to orient themselves upright. Insects have no inner ear like mammals to figure out what's up and what's down, they use light. Light is up, because in a natural environment in which they have developed up is where the sun is.

So the moths are doing something useful, they want to fly straight, but get tricked by the artificial sun, which happens not to be up, but hovering in mid air. The bees however are doing something that has no apparent purpose, they're not trying to eat the balls, they don't attack them.

An analogy would be the bees think the little balls are the surface of the earth and they are desperately trying to stand on it.