Vito and Michael Corleone are the life form of Machiavellianism. Especially Michael Corleone (Al Pacino goated) showed on the big screen how to maintain emotional control and make decisions in difficult situations in life.
The movie is a masterpiece. It draws the audience in with its acting, philosophy, music and atmosphere.
Tom Hanks said about this series, "It's a series where you can find answers to all the questions in life." He must know something.