It'll certainly affect how society views addiction in general. Most people don't have a good picture of addiction, and don't understand that a drug addict can no more stop doing drugs than you can yell at a cripple to get them to stand up. it's a mental disease, not a moral failing, and as we learn more about the brain, we're going to find out that who we are comes down to just getting lucky with chemistry and physics.

The sci-fi future is what if you could go into a clinic and get your personality tuned up. Yes I'd like to add some humor but not sarcasm to my personality. Give me a bit more motivation, and I'd like to like jazz.