The last few scenes with Brodie showed that he is a fairly decent bloke!
He gave Brax some good advice and in fairness to him, he didn't rat Brax out over him & Charlie.
He obviously saw that Brax does in fact like or even like Charlie!
It shows that the River Boys are really a family rather than just a corporation, in Brodie's case anyway!
He saw that Brax had feelings for Charlie, and although he probably thought also that it wasn't good for him to be with a cop, he respected that we can't choose who we fall in love with. These things just happen.
If more of the River Boys were like Brodie I think there would be a chance that they would be accepted in the Bay!