Funny you should mention Anthony Storr. In a footnote I recently read in John Horgan's comprehensive book on mysticism, Rational Mysticism, he quotes Storr as distinguishing gurus from more orthodox spiritual leaders, not by "their manic-depressive mood swings, not their thought disorders, not their delusional beliefs, not their hallucinatory visions, not their mystical states of ecstacy; [but by] their narcissism".

Hmm. Sound like our boy?