North Korean defectors receive significant governmental support in South Korea, albeit some might argue it’s inadequate. The majority successfully integrate, securing job and attaining a moderate standard of living, although quite significant wage gap exists between defectors and South Korean-born citizens (approximately $500 avg. as of 2019). According to 2019 survey, 74.2% of defectors are satisfied with their lives in South Korea.
Still, some defectors struggle with adaptation, unfortunately leading to criminal behavior or, in extreme cases, suicide.
Obviously, those from privileged backgrounds in NK tend to adapt more easily. They often arrive with significant funds (with questionable source) and make a deal with the SK gov. to not ask about its origin in exchange for NK’s internal intel, which this guy obviously will have a lot.