To defend Amir, I think it's OK for people to see his image.  His arguments are good, and while his appearance isn't exactly "attractive" and "comforting" to the common man, his views do reflect the sentiment of a strong part of our (increasingly diverse) bitcoin culture.

What is good for people to see, is a "hacker" arguing passionately about the inherent good of people.  If you were the common layman and took a second to "listen to the wacko", you would hear his passions for a healthy and vibrant world economy, freedom from banks, a need for a system that is safe from identity thieves, etc.  It helps to quell the stereotype that "those guys" are only interested in creating a cryptic-currency to go buy drugs.  And I see that as a positive thing.

Also, the audience of Al Jazeera is more diversity-aware than the typical American audience.

(I thought the Indian guy did a good job, but his accent was a little thick ).