If Haggard remained in the pulpit in his position of authority with the Christian community all behind him, you might have a point. As such, you don't.
Well, it just so happens that Haggard's position is hypocritical while Dawkins is not. That doesn't change the fact that people invalidly use the Haggard scandal to pain a bleak picture of Christianity in the same way you are invalidly using Dawkin's atheism to associate atheism with evolution.
You would also probably object to me labeling the ID movement as Christian when I point out that the majority of proponents of ID are Christian who also write about ID as it related to Christianity. So what?
Dawkins is an athiest who believes in evolution. That does not make evolution athiestic any more than painting stripes on my volvo makes it a racecar.
Of course, biblical creationists are committed to belief in God's written Word, the Bible, which forbids bearing false witness; --AIG (lest they forget)