I think the movie depiction of Young Genco was nothing like Mario Puzo envisioned him. Instead, FFC simply used Genco as a device to show the audience that the community feared Fannucci.

-In my HOME!!! In my BEDROOM WHERE MY WIFE SLEEPS!! Where my children come and play with their toys. In my home.

-My father taught me many things here -- he taught me in this room. He taught me -- keep your friends close, but your enemies closer.