Psychedelics are about as powerful and useful as Broccoli or Ginger (and yes, Broccoli, Ginger and a host of other 'common' plants are THAT powerful - just without the flashy perceptual fireworks and tendency for post-usage messianic ego-inflation, that are characteristic of Psychedelics)
"There is no better indication of the limits of psychedelics to lead to self improvement than a rich guy tripping balls and deciding to patent ‘shrooms" (via)
Excerpts from the article: Ayahuasca changed this hedge funder’s life. Now he’s bankrolling a psychedelic boom (LATimes) about Sa’ad Shah of Noeticfund