How to Read an Ayn Rand Novel

I think it might not be plagiarism since you sited your source, so I you don't have to worry about a lawsuit.
Also, from what I've read about Ayn, she would not have supported rational self interest and happiness that involved criticism of her:

No Randian, even the top leadership, was exempt from the all-pervasive fear and repression. Every one of the original cadre, for example, was placed on probation at least once, and was forced to demonstrate his loyalty to Rand at length and in numerous ways. How such an atmosphere of fear and censorship crippled the productivity of Randian members may be seen by the fact that not one of the top Randians published any books while in the movement (all of Branden's books, for example, were published after his expulsion). The only exception that proves the rule was the authorized exercise in uncritical adulation, Who Is Ayn Rand? by Barbara Branden.

The Sociology of the Ayn Rand Cult

But Objectivism and her story of a pure capitalist utopia in a failing bureaucratic dystopia is still awesome and empowers me to act like a dick.