Cosa Nostra recruited major smugglers to control them [causal]
Thus, "it became necessary for the Cosa Nostra to turn the major smugglers into men of honor—that is [Tommaso] Spadaro, [Nunzio] La Mattina, and Michele Zaza—in order to make them more amenable to its will."
XREF: Connects to broader patterns of criminal organizations absorbing independent operators into their hierarchy to gain control and leverage.
Diego Gambetta, The Sicilian Mafia The Busi…, loc. 621