Answer:
Their main motivation would be helping others
Explanation:
A superhero might have several motivations to use their powers. I would think the most common one would be wanting to help others, it could also be wanting justice, using them for self defense, patriotic duty ( meaning he/she/they loves their country and feels loyal towards it), rebellion, protecting their loved ones, or maybe even because it's their job. I hope this helps a bit, they're just some ideas.
