PlatypusNinja's point is confirmed by the fact that addiction happens with regards to things that weren't readily available during the vast majority of the time humans evolved.

Opium is the oldest in use I know of (after only a short search), but it was in very restricted use because of expense at that time. (I use “very restricted” in an evolutionary sense.)

Even things like sugar and fatty food, which might arguably be considered addictive, were not available during most of humans' evolution.

Addiction propensities for things that weren't around during evolution can't have been “debugged” via reproductive failure.