Samsung Group Chairman Lee Kun-hee’s ranking among the world’s super rich rose to 45th place last week, thanks to the surge in the stock value at the conglomerate’s electronic arm, a US-based financial news source said Sunday.   According to Bloomberg, Lee, who has been hospitalized since May 2014 after he suffered a heart attack, is valued to be worth $18.5 billion. The total represents an increase of $4.