It's not moral at all, if he shows petty it can be interpreted as weakness, and with that his political dead. Yes, he have to pull out North Korea from what it is now, but doing it to fast would mean his dead and the dead of North Korea.
If he open the economy to the exterior North Korea is gonna go in bankrupt. If he try to give to the population taking from someone else it might arise problems, specially if those others also have some political problems. And the same will go if he takes money from the militarist program.