Well, I don't mean to rock the boat too badly--like I said, you'll have to bear with me. I'm kind of inclined to agree with Rev though--I don't see 3 people pulling that much influence so quickly. Aria's been at it for hundreds of years and not to mention Omega's more than just a space station but a major hub for the Terminus System. Rouger may be a planet, but I never personally invisioned the city as having more than a few hundred thousand souls, if that many. Practically speaking, none of you can be Aria level powerful, as she has sole control of her spot and you three are sitting on an uneasy truce to occupy it. Also, besides Omega, she's got three of the most well known intergalactic gangs/private military contractors at her beck and call.
I don't think you'd ahve to scale back too badly, just not make your guys invulnerable to the authorities if they should turn an eye to you. I see the situation as being like the Golden Age of Piracy where a deluge of military grade ships and the like are out in the open because of cut backs and confusion post reaper war...i understand it's a bit of a stretch anyway, but for me it's more believable than so many people becoming so powerful so quickly.
From a story telling perspective, I'd personally prefer it if none of you were Arias. It just strikes me as no one would let pirates get so powerful--hell Aria always annoyed me as a character period...but that's personal preference.
I don't know, is that cramping on your style?