It was like any other family, the older brother over powers the younger and there are problems.
And in some father son lives it's the same.

Phil moved down beach a couple times but something always made him come back , Nick in jail or a couple years go by and there is a threat on Nick and he would come back .... but he always came back !

Also Nick was his father figure and his uncle and his mentor and his boss .... the kind of boss that would kill you !

Phil just never lived ... really lived .... and it was time I guess.