South Korea’s reputation for dispensing even-handed justice took yet another knock Tuesday when a court suspended the prison term of one of the country’s richest men for a gangland-style revenge assault. It was the second time in a week that one of Korea’s high-flying tycoons avoided jail from a criminal conviction. On September 6, Chung Mong-koo, the chairman of Hyundai Motor Group, had a three-year prison sentence for embezzlement and fraud suspended on appeal. Chung’s company had earlier offered to donate nearly $1 billion to charity. The court took Chung up on the offer, saying his value to the Korean economy was such that he should not serve jail time.