Does Advertising Contribute to the Problem of Drug Abuse?

Every day we are bombarded with advertisements for a legal recreational drug (alcohol). Is it possible that we are being conditioned towards illegal drug use as well? Does the unconscious discriminate between legal and illegal?

(Of course there are other factors contributing to the drug problem, such as the distorting effect of illegality on the market, as in the 1920s with alcohol.)

Shoud we ban alcohol advertising, and legalise recreational drugs? This would simultaneously increase individual freedom, and limit corporate freedom. What do you think?