My guess is they are doing it to 1) to avoid getting their works pulled from award ceremonies and to reap the publicity that comes with them, and 2) to get more

My guess is they are doing it to 1) to avoid getting their works pulled from award ceremonies and to reap the publicity that comes with them, and 2) to get more access to film libraries since the MPAA will implicitly or explicitly lobby other members to play nice with them.