On the 10th anniversary of the Iraq invasion, why we do praise the converted over the initially right?

I think it's terrific that Republican Senator Rob Portman of Ohio has come out in support of gay marriage.  I think it's notable that he came to this conclusion after his 21-year old son came out of the closet, as the more would-be homophobes are forced to actually put a human face on the theoretical 'other' of homosexuality the faster this remaining prejudice will go away. One of the major cornerstones to doing away with institutionalized racism was the white World War II soldiers who served alongside African-American soldiers and realized that they weren't lesser creatures.  But this news story ties into something that frankly I was going to write about on Tuesday to commemorate the ten-year anniversary of the Iraq invasion.  In short, those in the mainstream media, especially in the beltway press, seem to reserve a level of respect for those who once were blind but now can see.