You can view it that way or you can view it that it was Vito's family and his sons changed their life and lost their ways compared to how he rose to power. He did it because he got bullied and they killed and ravaged his brothers/father/mother...so he went in that direction to protect his family and avenge his father later. Michael and Fredo succumbed to selfishness, in fighting, and lust for power. Michael turned on every value he had and let this thing get so BIG in his life that he actually killed his brother to keep "la cosa nostra" going. AN EPIC fall from grace from a man who was in the military and was content.yeah no doubt, full respect to brando, but the godfather trilogy is really michaels journey.