Elvis is a good shout and similar to the Beatles in many ways.
He had a (superficially) acceptably safe image that was just a little bit naughty (Elvis was a bit sexy where the Beatles were cheeky scamps) and both were taking the rough edges off and recycling the music that they liked by unacceptably black artists.
Of course Elvis didn't write songs, so couldn't do the creative pivot that the beatles did from Rubber Soul onwards.
Up until then i'd say that the Beatles influence was pretty much limited to style and marketing and their music wasn't that influential. They were also riding on Elvis' coattails a bit in the early years after he mainstreamed r&b rythms.
Sgt Pepper made Brian Wilson sit in a sandpit with a piano for a year to try to emulate it. That's pretty influential.
You might not like the Beatles but they changed the way bands were marketed. They inarguably were musically influential too. They definitely did change music, but then most successful acts do to some extent even if it's in a tiny way. I wouldn't argue that the beatles had a bigger influence than Berry Gordy, Hendrix or Dave Davies' buggered amp, but they had an influence.