I agree, I find it quite baffling regarding the comments on Adam Clayton, who bass lines couldn't be further from playing just root notes, at least no more or no less than any other rock band like Queen, Pink Floyd, Bon Jovi or Iron Maiden. He also plays in the rock genre and is simply serving the song, the role of any good bass player. Plus it's about iconic bass lines and not virtuoso player, if you look at bass lines like Under Pressure, Come As You Are, New Years Day, Love Will Tear Us Apart, Money, all very recognisable so iconic, but certainly not hard to play or on any level of virtuoso.