If [Ayn] Rand really wanted to build an individualist sub-culture, she would have done so in an evolutionarily informed way. If people naturally care about the opinions of others, jumping on people is a good way to get dishonest conformity, but a bad way to get an honest exchange of ideas. Instead, an individualist sub-culture must be built upon tolerance and honesty. I'd suggest three key norms:

1. Don't think less of people who sincerely disagree.
2. Do think less of people who insincerely agree.
3. Do think less of people who think less of people who sincerely disagree.

--Bryan Caplan

Reference: Guardians of Ayn Rand