what is the claim here? that some great leaders were addicts, so addiction is a trait of a great leader? please. it is interesting to note that some can simultaneously battle substance addiction and lead productive lives, but nothing in this article even remotely resembles proof of causation.

that said, i can believe that the greatest thinkers and inventors in human history are those that were completely obsessed (addicted?) with what they were doing. people can become addicted to pursuing their vision, and in this sense the article has some merit. not well communicated however.