Previte was never a captain. He was considered made by the natalae merlino guys who knew nothing about hte inner workkings of Stanfa's "family".
Previte was used by Natale and merlino for one thing, money. Natale who was not the cagiest guy trusted him more htan the merlino guys and kept him too close.
After natale went away, merlino kept him at arms length taking his kicks happily but previte had no made guys under him and had no authority to petiton guys up for membership.
This is not hindsight bias either.