Maybe Achieving Capo Di Tutti Capi in each city, which Godfathers earning percentage would go to them, while Godfathers take their percentage off of their family.

It's and idea, appreciate any comments. 

Capo Di Tutti Capi is more of a media term, and should be applied to the leader of ther most powerful family, such as Diemne was. Not a good idea to have it as a rank in this game as it would just create tensions amongst the other GFs and mark someone as the number one target.