So many of his songs were about sex, and he was an outrageously flamboyant black man. To Fifties America he was dangerous as heck, especially if little white girls liked his records. He was worse than Elvis, who covered his records. Good white families bought Pat Boone's versions to stay safe... and their kids bought Little Richard.
Chuck Berry, Little Richard, Buddy Holly, Elvis, and Jerry Lee Lewis were the pillars of rock n' roll. You can throw in some marginal players like Bill Haley, Carl Perkins, Johnny Cash, but those guys lit the fuse and were influential as heck in both the sound and the shows that came later.
I learned to love rock from the Beatles, and early on they gave me "Roll Over Beethoven" and "Long Tall Sally". I didn't know Chuck Berry and Little Richard then, but I found them soon enough.
Rest, Richard Penniman, sweet tortured soul. Helluva band in heaven.