Why refer to langan’s qualifications as “superbly qualified”

In the book "Outliers: The Story of Success" by Malcolm Gladwell, the author tells the story of Christopher Langan. Langan was about to participate in a game show called "1 vs. 100," which tested the contestant's knowledge of trivia against that of 100 random people in the "mob." The author argues that Langan was "superbly qualified" for this task because of his incredible intelligence.

Some of the reasons why Langan was considered brilliant are:

the group received an extra pound of butter for christmas.

the annex was delighted to hear that we'll all be receiving an extra quarter pound of butter for christmas.