I'm far from convinced early Pink Floyd were influenced by The Beatles. PF were formed in 1965 and it wasn't really until mid-late '67 that the Beatles started to produce their ground breaking stuff like Sgt Pepper, Magical Mystery Tour, Strawberry Fields etc by which Time, Pink Floyd had already recorded Piper at the Gates of Dawn so couldn't have been influenced by the Beatles' most influential stuff. There were signs of a slightly more experimental approach on Revolver in 1966 but much of that was prompted by George Martin rather than The Beatles themselves but up until then, IMO their albums were collections of decent songs, albeit including some classic pop songs. (BTW, not a lot of people know that they didn't write 'Twist and Shout'.) The Who released 'My Generation' in October '65 and I think it's a bit of a stretch to think that was influenced by the Beatles' output up to that point such as it was.
TBF, you did say that "most people of that era that came after The Beatles were influenced by The Beatles" but I don't think artists like Pink Floyd, The Who, The Rolling Stones, Hendrix came after The Beatles, IMO they evolved independently, alongside The Beatles and probably would have done even if The Beatles hadn't existed or just hadn't been quite so successful.