Rock music is good enough not
to be on the mainstream charts.
There was great rock music that was also popular in the 60s and 70s, but it was not popular because it was great. The Beatles wrote some great songs, and they were popular because they were given cute personalities and ran from one limo to the next.
That is a cynical way of looking at things.
I think 'ignorant' is more accurate. Others have already pointed out the fallacy in what Jirin wrote about Elvis so I won't belabor that point.
The Beatles were popular because they wrote great songs and also did great covers. The fact that they had a great look and pleasing personalities only enhanced their popularity. Eventually the mainstream caught on to the fact that Lennon/McCartney were one of best pop/rock writing duos ever, which is the reason the Beatles are held in such high esteem to this day both artistically as well as commecially.
Someone else can straighten him out baout the 70's.