Lyricist half of the greatest songwriting team of early rock and roll, maybe never topped by anyone but Lennon and McCartney. "Hound Dog", "On Broadway", "Stand By Me", "Poison Ivy", "Yakety Yak", "There Goes My Baby", "Kansas City", "Jailhouse Rock", "Ruby Baby", and many more.
There's an episode of What's My Line where Leiber and Stoller were the guests; the panel were horribly condescending about rock and roll music--they were asked if they would ever consider trying to write some "serious music"--and they handled themselves very well.
I'm guessing it's because neither of them pees on underage women and/or randomly freaks out onstage during a concert and accuses the audience of pointing guns at them. The problem isn't so much with R. Kelly having an attitude problem.