Many "brilliant", "high IQ'd" individuals have many problems to deal with. Whether it involves being antisocial, insecure, pompous, etc... brilliant individuals rarely have a combination of intelligence and common sense. They occassionaly turn to drugs, alcohol, or other ways to help themselves better deal with their situations. I think you make an excellent point. However, I would not call these people "smart"... I cannot define any drug using, hard partying individual as "smart"... but I will call an individual with these qualities and a tremendous IQ as "brilliant". I would call someone with a high IQ that decides to avoid illegal drugs and has a good portion of common sense as "smart".