This is a ruse. Montenegro will not extradite to SK bexause that will extradite to Uncle Sam. Do Kwon will create a precedent not worthwhile to their elite and questionable rich+powerful there. I guarantee they will release him early maybe on good behavior excuse. During incacerations, he will get to plan his escape...perhaps Argentina. And do his Shawshank redemption move the moment they release him on good behavior or even "technicality".
Sometimes it's a fine line separating innovation and crime. But not here, this was always obviously criminal.
Hope he donated a sufficient amount to the ruling parties.