that's certainly a thought. As far as work ethic is concerned over-all you see the same focus and energy in many parts of the US that you witness as a whole in the emerging economies of Asia. Although the cultural aspect (karaoke) stands out , it may help as per worker efficiency only in countries like Japan, Korea,Taiwan and the Philippines,where karaoke holds sway. It's probably more of the urgency of being the underdog economy that makes their workers go the extra mile. But developed economies are transforming culturally as a nation and our version of what serves as the karaoke bar just might emerge. With just the booze, one can readily do that alone and it can by itself become a dead end.
With karaoke,The singing is the socialization process, the liquor comes in second. With that kind of mix, you don't have to exclude non-drinkers from the process (even non-singers, for that matter). Good article !