There is also the problem of the brainwashed, starved, ignorant, backward people the Kim's have cultivated for the last half a century. Facts mean nothing to a people so backward they insist after watching a surgical procedure by medical doctors that Dear Leader healed the patient in question. I don't envy the government of South Korea. The entire population of North Korea is mental.
At least that population has the legitimate excuse that malnutrition due to a steady diet of tree bark and rats weakens the mind.
Kim ruthlessly exploits his own people to stay in power.