I think the value of that should not be misunderstood. Imagine the reverse: it would be quite damaging if something made you think that your ideas were less profound or worthwhile than usual.
(I am saying this as someone who has never taken LSD, so take my take on it with a grain of salt I guess.)
In Star Trek IV, Kirk says to a marine biologist that Spock is strange because he did a little too much "LDS." This was paricularly amusing to viewers who grew up in Utah.