The Godfather saga is clear on one point: the world of the mob has no exit.
Michael Corleone takes his family deeper and deeper into destruction.
Why?
First of all, the Corleone life is crime. They cheat, lie, steal,
intimidate and murder. No matter how attractive they are, that's what
they do. It's the source of their wealth.
From that foundation,
they venture out into the world and they find enemies. Competing
families. They can try to broker peace and sign treaties, or they can
attack.