Hyundai Motor Chairman Chung Mong-koo was the top earner among leaders of family-controlled conglomerates last year in South Korea, data showed Thursday.The Economic Reform Research Institute said in its analysis of executives’ annual paychecks that Chung earned 9.3 billion won ($8.25 million) from Hyundai Mobis and Hyundai Motor, two core operating units under Hyundai Motor Group. Chung has topped the list for the ...