I know the irony in that speech but I think he gave film a incredible amount and was a definite bona fide screen legend.
3 unforgettable characters in Don Corleone,Stanley Kowalski and Johnny.
Plus memorable work on August Moon,Guys & Dolls,One Eyed Jacks,The Men,Young Lions,Apocalypse Now,Last Tango and influencing Pacino,DeNiro,Dean and just about every male actor after 1950.
That's a body of work more than 99.999...% of actors will ever achieve.