I need to see some activities that would require a "mastermind" in the first place...
The prostitution - girls could have set that up easily by themselves,especially having the amazing,the incredible,the sensational Quinn on their side.
The drug trafficking(?) - I`ve seen drug use so far...but let`s assume the trafficking part(because the DiK`s have to have money from somewhere),here`s how it works:you get a supplier,you sell from "under the table",you clean the money - it`s easy,it`s something Tommy could be doing on his own.
We have a scene with Burke in the stall and Quinn+Riona leaving the toilet - that scene is there for a reason,that reason could be Burke cheating on his wife,with the students or having some pull on Quinn.
Not saying that the "mastermind" thesis doesn`t make sens,it does,again I have not seen anything that would require said "mastermind"