Rock Musicians don't only play 3 chords Grrr '

Once again I am upset with stupid Idiots who think that Rock musicians can only play three chords ! The latest thing is the Virgin advert on TV with the band that says ( Cause we can play Three chords we get treated like Whatever)  How Stupid is that advert,  Wake up people, We CAN PLAY MORE THAN THREE CHORDS  Virgin!   BRIAN MAY  would  play more than three chords so why say it!