His father was made as were his uncles. Actually seems like a logical transition.
As for Ricciardi and his assistance. Look at it from LE perspective. He was involved in 9 muders that involved other OC figures. The kids that were burned alive in that fire were innocent. I can easily see the rationale behind that. Especially the way they died, it was tragic. Those kids were acting like punks and they should of got 20 fuckin years if you ask me.