I know why people wanted to go to North Korea:
http://www.huffingtonpost.com/2013/1...n_4067341.html
Yes, that's a shopping bag full - for a street price of 80 cents at the time. Since North Korea is pretty much a completely separate economic entity from the rest of the world, plants are grown and sold as plants, and not a part of the US paradigm of selling plants as drugs, or the criminal paradigm of selling drugs for whatever price the buyer is willing to pay.
Stealing propaganda is definitely a no-no everywhere in the world. You would also be thrown in jail if not shot for stealing the US constitution, which arguably is just a piece of parchment where only the words are of value. If a North Korean defector stole the US constitution or the Mona Lisa, it would be a truly worthy feat.
I mean, people in the US will kick their neighbors asses, literally - for defacing a $5 plastic "Vote Trump" or "Vote Hillary" sign.
As far as I'm concerned, this guy did the equivalent of steal a "Vote Trump" sign in front of a group of Trump supporters. He got everything he had coming to him and more.