Dude have u ever seen the diversity of acts this mans produced classic, groundbreaking albums for? I disagree about your beat making argument too. There's tons of "beat makers" in hip hop that aren't very good producers.
Hip Hop and Electronic music are different from other genres...You don't need a "producer who doesn't make beats, but only "directs" the record" in order to make great hip hop records...
You do need good sound engineers...
If you make hot beats, and you also understand the principles of sound engineering, as a hip hop producer, you will make tons of money by cutting of the middle man...
If you wanna really break it down the original role of the producer was to guide the direction of a record. Phil Spector never played an instrument but he's one of the illest producers ever, he knew how to direct musicians n what combination of sounds/vocals would equal a better song. Same thing w Rick and Dre in a lot of cases, they put the peices to the puzzle together. Rick understands music through n through, that's y he can produce a death metal group like Slayer then come back n produce jay z. And his bytch is bad as fukk
But hip hop is not like other music...You don't need someone to "guide the direction of the music." The rapper is essentially the "producer" if you talking about "guiding the direction of a record."
The beatmaker decides which sounds go well together, because he is the "musician." The sound engineer ensures that the sound is "clean," because today's fans are obsessed with clean sound they can "bump in the whip."
Then you need another engineer who will master the final mix...
But back in the grimmey sampling days, you didn't even need a good mix...
The change in what fans like today from what they liked yesterday is the BEST evidence of why the idea of a good producer is so subjective...
I am a fan of the Thrash Metal (not death metal) group Slayer...Their best Rick Rubin produced album, "Reign In Blood," is not musically better than their first album "Show No Mercy" and second album "Hell Awaits"...At least not where the music is concerned...
Why do a lot good mixtape rappers "fall off" when they become famous, and replace their "come up" producer, with a "big budget" producer...?
Because "Big Budget" producers in MANY cases can't give you that "hungry sound" most die hard hip hop fans crave for in their core...