I think in a strange way, the Beatles were a bit like Duke Ellington in their relationships to the main streams of their music. What each did was very personal and innovative but wasn't the starting point for some new thing. As far as modern Rock is concerned, the development was done by London bands like the Stones, Yardbirds, Manfred Mann, Cream and Led Zeppelin, who had come out of London blues bands like Alexis Korner's Blues Incorporated, John Mayall's Bluesbreakers and the Mann-Hugg Blues Menn. Very little of that music seemed to me to owe anything at all to the Beatles, though everyone recognised the value of what the Beatles were doing.
So the Beatles (and Duke) stood outside the main flow, always able to join in when it suited them, but more often than not, not bothering with that flow.
MG