Akainu is nuts. However, it was pretty cool to see such a high level "Absolute Justice" marine. I feel like it added a lot of depth to the Marine's as an organization, that being from a readers perspective and in relation to things that make the manga "interesting".

Akainu would cause way too many problems for the WG as well with his Absolute Justice crap. Aokiji's freezing ability was also part of why the Marine's won that war, can't forget that!