Enforcers gain a +1 bonus to their leadership score, although the maximum number and level of their followers and cohorts remains standard.
Please, correct me if I'm wrong, but what other use there for the Leadership score, if not for the level and number of cohort and followers?

Also, don't know if it was already mentioned, but:
Quote Originally Posted by Stormwrack
A humanoid or monstrous humanoid who dons the admiral’s bicorne gains a +5 bonus on Profession (sailor) checks and all Charisma-based checks (including Leadership) as long as it is worn.
Leadership is not a check...