On ‘The Fountainhead’: Why is authenticity so difficult for some people?

The following is an excerpt from a samvaad (dialogue) session with Acharya Prashant.

Question: Acharya Ji, Pranaam! While reading the first chapter of ‘The Fountainhead’, I found that the character Peter Keating shows us our reality. But in front of Howard Roark Peter can’t hide his falsities, though he tries his best to.