[jacquesm]

It contradicts that he didn't have a say in the creative direction.

That may not have been true at the time the gp indicates though.

[arvinjoar]

John Deacon did write songs, so he was not completely out of the loop. But just look at their discography: http://en.wikipedia.org/wiki/Queen_discography

John Deacon had a very small part in their total creative output, and so, his contributions to their creative development wasn't comparable to that of the other members.

[thwarted]

It doesn't contridict that Deacon didn't have a say in the creative direction: having written one song that was popular is not the same as having influence on much of the band's output. I don't know enough about Queen's history to say that Deacon did or did not have creative influence, but citing one song isn't support.