Originally Posted by Evita
Michael like father like son, in every way Criminal and Blood family

The difference was their wives. Carmela you can never lose your family Kay murdered theirs
Carmela's love, loyalty and support for Vito was unconditional and she took care of their blood family without asking Vito about his business unlike Michael's horror wife Kay

Biggest Hypocrite Kay enjoying the spoils of the tainted money from other people's blood, misery and murder, funding her rich and privileged life until the Tahoe bedroom shooting when it suddenly dawned! on her this unholy and evil Sicilian thing that's been going on for 2,000 years must all stop

Also worth noting when
1. Vito and Carmela married, Vito was a law abiding store employee
2. Michael and Kay married, Kay knew Michael was Mafia