It's not going to work as intended. Many of the most hard core addicts do step back from the cliff of the worst behavior they're driven to.

Bodies are part of our intelligence as well. Presuming the brain is the center of all thought leaves out the body as a gatherer of data and processor of information.

Alot of people will go nuts from the conflicting reward inputs. The body's intuition will be screaming at people to do one thing, while their brain chem encourages self-destructive behavior.