Well, we know that they ran the gang together. In the second episode of the series (I think) Ryan is talking to one of the guards who askes him how his brother was doing and Ryan's response--haven't watched the episode in a while--implies that Cyril is running things. Also, his body language in the episode when we're shown what happened to cause the brain injury Cyril sustained, he certainly didn't behave like a minion.

I think you've picked up on something. ;-)