Statement:
An average person in South Korea drinks less alcohol than in South Africa

In the Alcohol average daily consumption rating South Korea holds position #71 ²⁰¹⁶ out of 189 and South Africa is #6 out of 189 ²⁰¹⁶.
Position of South Korea is better than position of South Africa.
South Africa is leader of the "Alcohol average daily consumption" rating. So people in South Africa are more likely to experience problems related to the consumption of alcohol in social, healthcare, and economical areas, compared to South Korea

Referencies:

1. Alcohol average daily consumption ²⁰¹⁶ by WHO

   The countries in the rating sorted by 'Both sexes' in descending order.

   South Africa	'Both sexes' value is	64.6
   South Korea	'Both sexes' value is	34.6