Along the same lines, the fact that Timothy Leary existed as a public figure was a deathblow to the counterculture of the time. That asshole is almost as bad as Nixon in terms of responsibility for the demonization of LSD, too. Hunter S Thompson had a great quote on this (which touches on the generation's heavy drug use as a whole):
“We are all wired into a survival trip now. No more of the speed that fueled that 60's. That was the fatal flaw in Tim Leary's trip. He crashed around America selling "consciousness expansion" without ever giving a thought to the grim meat-hook realities that were lying in wait for all the people who took him seriously... All those pathetically eager acid freaks who thought they could buy Peace and Understanding for three bucks a hit. But their loss and failure is ours too. What Leary took down with him was the central illusion of a whole life-style that he helped create... a generation of permanent cripples, failed seekers, who never understood the essential old-mystic fallacy of the Acid Culture: the desperate assumption that somebody... or at least some force - is tending the light at the end of the tunnel.”