It's a bizarre situation when these "truth seekers" call themselves the "real Buddhists" (although they often know little about core Buddhist ideas) and call practicing Buddhists "mere conformists."
Well, this is a conformist attitude you're describing, although it doesn't help to point this out to people right away either. (trust me, I've tried this and it doesn't help, even if it's an objective fact.
What sometimes works is to listen to people. Not just to what comes to them first on this topic, but to keep them talking and really listen until you find out what they're really looking for. Why are they seeking? Which is another way of asking: where and how are they hurting, and what are their real aspirations?
This takes time.
Eventually, if you're still in contact with such a one, it helps not to go into the details of Buddhist doctrine but instead to describe very basic Mahayana aspirations. If that resonates with them, if they're really interested in turning the corner away from spiritual materialism, then Hotcha! failing that, though, they're just going to keep talking and not listening until the light comes on.
related: new age people are very discursive. ever notice how long Ken Wilber's books are relative to how light the ideas? for starters. Logorrhea.
Need help getting on retreat? Want to support others in practice? Pay the Dana for Dharma forum a visit...viewtopic.php?f=114&t=13727