I am always conflicted thinking of people like Spector. Extraordinarily talented and, yet, apparently a terrible person. Sometimes it's easier to enjoy an artist's work without knowing anything about the artist.
"Producer". 99% of the time, another word for "d!ckhead" [or "parasite"]. Similar to "Music Director" or "conductor". Only a few stand out, like George Martin, Shel Talmy, and Steve Albini.
But Spector was involved with this great track: