If it’s acceptable for humans to exploit other animals for food, clothing, labor, entertainment or experiments because we’re more intelligent than them, would it be equally acceptable for a superintelligent alien race with 10x the mental capacity as humans to do the same to us?
The acceptance is one-sided in case of animals, so to make the question fair, we should ask: Would exploitation of humans be acceptable to the aliens? The answer is: Let’s hope that besides higher intelligence they also have much higher empathy!