People with ADD are often passionate in a world lacking in passion. They experience a wider bandwidth of the spectrum of emotions - including anger and love. Many people appreciate the arts because they bring back emotion that's been lost. Perhaps talking to yourself all the time isn't good. You can incubate fear and negative emotion from too much self-talk.
Some people are very successful because they take risks.
ADD is a problem of doing what you know to do. Time is not given for common sense one has to emerge. What we want for people with ADD is for them to perform what they already know. The self-control is in there, but it's difficult to call upon it. Teach compensating skills - long term therapy is not usually necessary.