I know the title for this is very extreme. As a father of a son, Kim, the CEO for Hanhwa Group, seems to involve in bar brawl. Here is a link to the article, Hanwha boss queried over bar brawl.
Since I have been away from schools in Korea, I can't represent Korean attitude toward this type of fight. Yet, our mothers and fathers usually do not encourage their kids to revenge or fight back. I was taught that "Kids are growing while fighting."
Kim is not only an influential figure in Korea but also wealthy person, who can solve the issue through law. Regardless of what happened, I do not understand why this guy got bloody and dirty hands by himself.