The North Koreans are missing a sure thing. They should take a page from the Communist Chinese in Macau/Hongkong and formally monetize sex in NorKor.
In my vision, they would turn political prisons and labor camps for women into state run pay-for-sex brothel complexes. It could start off small with high quality porn productions bringing in crypto money from the internet and use that to finance an all-inclusive resort complex to rival \what goes on in Macau China.
Their economy is so small already that this could be a major governmental money stream.