MongGrel
Lifer
Yep. They can point to North Korea as an example that makes them look better. Plus, they can point to it as a nation that fights the good fight for communism against the mighty oppressive Western economic hegemony. Plus, North Korea is apparently resource-poor enough to not be valuable enough to bother to take in the first place.
All of the above, and China considers it a buffer zone from SK also.