Surprising statistics to back the expilnation:

• South Koreas population (48.96 million) is double North Koreas (24.72 million) population (estimated 2013).
• North Koreans ( at 79.2) are expected to live ten years longer than South Koreans ( at 69.3) 
• The Internet users per 100 people are 81.5 in South Korea and you will never believe this but are less than 0.1 in North Korea! Which in my opinion is quite phenomenal that in this day and age they've magnaed to block out all access to Internet and social media.
• The GDP per capita is 32 400 dollars  in South Korea and only a mere 1800 dollars in North Korea! (2012)
• The infant mortality rate per 1000 live births in North Korea is 26.21 and in South Korea is 4.08.
• The press freedom ranking (2013) is 50th in North Korea and 178th in SouthKorea! 
• There millitary expenditure as a percentage of GDP is 22.3 percent in North Korea and only 2.8 percent in South Korea.