He also met Richard Nixon and became an honorary DEA agent, which I think is cool.No. I was actually referring to sales. Elvis, as a rock and roller, had way more #1 hits than anyone had ever accumulated before. But Elvis wasn't constantly flying around the globe on jets as the Beatles did. He never played a concert outside of the U.S.A. as rock and roll was mainly a U.S. thing in the 1950s. Plus, so many big name rockers died in plane crashes in the 1950s that he probably didn't want to fly internationally. To make up for that, nearly every country had their own equal to Elvis. In England their equal to Elvis was Tony Sheridan.
Elvis did what was normal, he went to songwriters and chose songs to sing. Sometimes those songs were not done by anyone else. It's not like how we think of "covers" in the post-Beatles world. He brought the rock and roll attitude into the mainstream and was the first notable record setter. So it's not karaoke because Elvis had a band that stuck with him and the same band kept on playing shows together even after he died. If you have ever really listened to his singing voice, it's quite unique and complex.
Other firsts would be meeting heads of state, getting keys to cities, being made honorary deputies, receiving war medals from heads of state for their accomplishments, as well as writing their own music.