Well, I suppose that depends on how you look at it.  Leary went high profile because the intelligence agencies were shutting down all psychedelic research that did not work for them.  I honestly prefer what we have now, with all public research on psychedelics banned, to having the control structure able to dictate their use.  I do not believe that any one of us would have access to psychedelics if it weren't for Leary.

Either way, I don't see how that would reflect on the rest of his legacy or on his character.