Vin Diesel has Fast and Furious, Riddick, XXX, and GOTG. Again, multiple franchises. You take away a single role from him he's still a notable name making big movies. Dude would probably be pumping out XXX movies if not for the FF franchise. Also whether you like him or not, he has a distinct look and character that he brings to his roles.
Worthington is nobody without Avatar and the role itself is a generic character that anyone could play. He wouldn't have a career without it and he literally adds nothing to the role.