Aside from Jackie Sr., I don't see where bad luck is the cause of death. In most cases stupidity and over-aggression. Adriana talked about drug connections to an undercover agent snarling her into a case where she had to inform or be exposed for letting the FBI infiltrate the Sopranos, even going right into Tony's house.
Richie was going to be killed for plotting to have Tony killed even before the fight with Janice.
Jackie Jr. robbed a card game killing a dealer and shooting at two made guys.
Seems the Apriles were more hard headed than unlucky.
"...the successful annihilation of organized crime's subculture in America would rock the 'legitimate' world's foundation, which would ultimately force fundamental social changes and redistributions of wealth and power in this country. Meyer Lansky's dream was to bond the two worlds together so that one could not survive without the other." - Dan E. Moldea
| 
