This is definitely a little pointed. The blog it comes from is heavily biased, but I'm not going to discredit the statistics, even though there's little information around the creation of the pictures.
Also, was interesting to read the article linked at the bottom (Unholy Alliance)....but I think it's short sided.
I've traveled in some of the poorest places in the world (primarily Asia). And so many times, the poorest are also the most happy, peaceful and welcoming, even if they are religious (muslim, hindu, sikh, buddhist, christian). So while the article is trying to link poverty and intelligence and religion (maliciously I might add) to a specific part of the population as being sub par, I think they are missing the point.
The point is, no matter what you believe, what your means are, or where you come from....don't be a jerk. That's the only way we all get along and be different at the same time.
I disagree with a ton of people on a lot of issues. But, hey. That's the beauty of being human. Free will. Maybe if we tried combining that with a little respect and love for our neighbors, we could all live with each other's differences.