I am aware of this danger from studying Jung, who warns that when one identifies with a collectively unconscious archetype, one becomes megalomaniacal and grandiose--- as full of oneself as the lowly and selfish gollem. Red flags to look for? Pompous unsensitive bloviation. Subtle belittlement of and condescension to those who disagree. And a hedonistic obsession with feeling "cosmic" and emotionally blunted to everything all the time. Here's a little overview of this: