As times change so do peoples personalities. During the old days of gambling and liquor DOn Vito was the perfect DOn. During the days of drugs and dirty politicians Michael is a better Don.

"Well you just do what I tell you to do! Goddamn it! If I had a wartime consiglieri -- a
Sicilian -- I wouldn't be in this shape! Pop had Genco -- look what I got." - Sonny Corleone