I think it is naïve to believe that North Korea can somehow be "convinced" to stop what it is doing and be integrated into the rest of the world to live peacefully ever after.
Look at what happened with Russia, which was well on its way to being peacefully integrated into the rest of the world. The people there "selected" a ruthless dictator to rule them, and he has used the paranoia he helped foster to justify armed conflicts with most of Russia's immediate neighbors, mainly because they don't like Putin. Russia is becoming more like North Korea. And, North Korea has developed the Kim Dynasty that perpetuates itself with paranoia about South Korea and the U.S. The Kim's are not going to relinquish their hold on their personal country, because it is not in their personal best interest. If the whole North Korean population were to realize what the Kims have done to them, the Kim's would be in mortal danger.
It used to be thought that a country with nuclear weapons would begin to realize that it is much less likely to be invaded, and then become less belligerent. But, as nuclear weapons are acquired by nearly all belligerent nations, the odds of conflict involving nuclear weapons seems to be increasing, now. Russia has threatened to use them if other countries strike inside Russia to hit the weapons that Russia is using to hit other countries from within its own boarders. And, some crazy dictator somewhere may some day decide that he will destroy the whole world if he can't control the whole world. Some religious zealots may even believe that it is their deity's will that they destroy the Earth, and that they will be rewarded in heaven for doing so.
The Kim's have been educated abroad, under assumed names, so they do know what life is like outside of North Korea. They just don't want their citizens to know. And, they may use China's invasion of Taiwan as an opportunity to invade South Korea, which could escalate out of control into a nuclear world war.
So, I am not at all sorry to read that a North Korean rocket blew-up. But, I don't expect that they will not be able to eventually succeed in orbiting satellites and developing nuclear warheads and ICBMs to deliver them.