I don't quite understand the point here. Santana had one massive hit record that was mostly due to riding on the talents of those with one hit record. Check out his sales from the mid-seventies till then.
His stuff is more pop-rock than rock, anyway. I don't know too many people who rock down to Santana, though I know lots of people who have him in their "world music" rotation.
FALSE...
Carlos Santana does not need any 2 bit singer to make his music worth while...
He helps singers who might have a chance at a hit record achieve one....
He is still going strong...
Yeah 33 albums... I guess his label wanted to keep him around for 32 more just in case he had another hit. But that's not including solo projects.