Gambling and loansharking is one way that the mob has fleeced union members over the years. Though not labor racketeering in itself, theoretically those connections and interactions could lead to forms of labor racketeering like no show jobs and what not.

But it's true about labor racketeering involving the Philadelphia family being virtually non-existent. And the few cases I'm aware of have been very minor, ie a member of IBT Local 107 barred for associating with an LCN member, Ligambi getting health and welfare benefits from the IBT through his no show job at Top Job Disposal, etc.