That their culture hasn't changed much from 2000 years ago when people used to rape, plunder, and pillage. It's normal to them for these things to happen. Doesn't make then okay or the situation any better for them but it's normal. Their views on the importance on human life haven't evolved like some of the more developed countries. Break a law, get publicly stoned. They have been doing this long before humanity laws ever existed just in a different way.
I think the part of your posts that people are taking offense to is when you implied that their entire society was ready to stone people to death. It's not accurate to paint their entire culture with the same brush stroke through the blood.
Pakistan is remote in places, particularly Waziristan and the autonomous tribal zones. But the country is not stuck in medieval times - even in Waziristan they have Kalashnikovs and cell phones. These terrorists are certainly aware of the outside world. They publish their fatwas on the internet. They send videotapes to Al Jazeerah. Even the people committing these crimes have changed with the times, let alone the general populace of Pakistan.
You have taken a very ethnocentric view of the world if you're trying to compare conservative, traditional nations like Afghanistan and Pakistan to "developed countries" in terms of their moral systems. Further, I would submit that there is no normal state of affairs for any person, people or nation. We do not exist in a state of nature. All humans have the capacity to learn, to change, to adapt. It is the task of the enlightened to lead others to the path, not to condemn them for not having started upon it.