Yes, Blundetto also represents Tony's aversion to doing the right thing, be it in his OC life or just in general. Ultimately it ties into his parasitic nature.
Finnerty, Soprano, Petrilio(identity he used at the hotel), doesn't matter, quite literally and spiritually he was "born into this"...As he faced death in the spirit world and in the ER, he still refused to let go of his "business".
