Could you imagine if this had actually happened in multiple categories including Best Picture, instead of Oscar embracing Driving Miss Daisy's retrograde race relations?
Imagine the 1989 Oscars with 'Spike Lee Joint' fever instead of a just two nominations (Supporting Actor and Screenplay) because they had to give it up somewhere for the critical darling.
Imagine Rosie Perez dancing furiously to all the Best Original Song nominees !!! Fight the power, Rosie.
Think of the after-effects with Hollywood's most coveted prize going to a black film twenty-four years before 12 Years a Slave (2013).
See Malcolm X ride high in 1992 due to Spike Lee momentum and Denzel Washington clearing Oscar #2 long before Training Day and blocking Al Pacino's "hoo-ah"! (Pfeiffer would also have an Oscar, come to think of it)
Kim Basinger wouldn't have had any snub to get all righteously indignant about as she introduced one of the Best Picture nominees. Or would she have bitched about something else being all feisty that year.
The whole arc of history might have been changed*
*While I am not wholly serious, it's not like these things don't have after effects and during effects. Each Oscar decision affects future Oscar decisions and also the way people think of the movies in the long arc of cinema history.