Yep. Faced with getting stronger or saving the planet or the ones he loves, it's an easy decision every time for Goku.

Nah Goku would absolutely do the right thing over getting stronger. His sense of righteousness / defending his loved ones is incredibly strong.

That’s every anime lead though? They always wanna be strong, but even more so, they wanna do the right thing.

If anything having a main character prioritize being strong over doing the right thing - now that would be an actually special character.