To put Sgt Pepper into context, the following albums came out the same year:
Frank Zappa - Absolutely Free
Jimi Hendrix - Are You Experienced?
The Doors - The Doors
Pink Floyd - Piper At The Gates Of Dawn
Velvet Underground - The Velvet Underground & Nico
Procol Harum - Procol Harum
The Beatles where so "ahead of their time" and revolutionary right?