I think you might be on to something here, at least it's perspective worth considering. I've had this idea too, but you put it into words in a way I haven't been able to. Sometimes I think LSD is a self-important red herring that tricks us into thinking it's so special, always pointing us in some direction that is just beyond ourselves, and drawing us back so that we can stand on that pinnacle and see the grand view LSD was whispering into our ear once again. A kind of spiritual addiction.
All in all, I think there's a nugget of truth to it, but also truth to the other side, that it's a drug that has much to show us, and that it can be a powerful tool for self-growth. But maybe it is a bit of an egotistical charismatic guru type. You're right that people really can get into a culty reverence around it, and users do have a habit of putting themselves on pedestals at times.