Phil Spector murdered someone.
Clapton did his racist rant...
Bowie, Iggy, Jimmy Page, all of them, well, Google the underage sex allegations.
McCartney wrote Pipes of Peace and allowed The Beatles rights to slide through his fingers for next to nothing!
After all of that, McCartney especially(!), people still buy records that those above either produced or recorded.
Hmm! Are Manson's records any good?