In cp9 arc, spamdam is leader of cp9. IM is leader of WG or ruler of the world.
Rob lucci and akainu are both underling.
Luffy fought rob lucci instead spamdam.
Heck due oda poor treatment of rulers by oda like wano shogun who is supposed to yc1 or higher for zoro to fight . IM might end up fodder like spamdam
It's not the same. CP9 was just one agent group which is not the strongest, and Spandam due to his affiliations within the WG their formal boss, with the CP9 members not even respecting him at all, just doing their job due to bloodlust. Now in the CP0 however he stays beneath Lucci.
Im however is the persona the Gorosei, the highest authorities in the world, bow down to and refer to him/her as the lord. As him/her who sits at the throne and rules over the world.
How exactly is this the same?