The Koreans don't have the resources to control judging,
(Which is something that comes to the Russian Fed very naturally, It's a tradition even)
Even if they had them than i'm not sure they operate like that,
Unless they decide to be students of the Russians and try to emulate
Also, 4 years is a long time from now
How do you explain 1988 Seoul Olympics with Roy Jones Jr. and the 2002 World Cup then? In both situations, there was actual concrete evidence (unlike in Sochi) that Korea had bribed the respective judges and referee. Korea is just as capable of bribery and corruption as any other country.