North Korea's nuclear program has been slow and you give financial ability as a way out of it.. Decades ago is still decades late, then there is the dollar short aspect of their program.

I still have no idea what you think is an alternative that would have made a North Korea with South Korea's economy a great thing for arms control.

Keeping North Korea poor has all been waste of time unless our goal was to have 75 years of "wasted time" before a potentially uncontrollable escalation with China.