It seems a greater measure of wisdom may arise out of either a challenged life or active separation from material things. Wisdom can also exist in those who are in elevated places in society to the extent they dealt with the reality of thier circumstances in a somewhat rigorously instrospective way.
Meanwhile, Ursula M. Staudinger delves into the matter of wisdom in her list of 10 things that indicate or possibly define wisdom. She acknowledges that not everyone may achieve wisdom. Sometimes, the cost of true wisdom can be quite high.