I have pretty much "lost faith" in Objectivists and/or Objectivism "saving the world," or even giving it a gentle nudge away from the precipice. Objectivists cannot even make allies amongst themselves. They have not even been able to explain and/or extrapolate upon the philosophy among academia (with a few notable exceptions) and have had negligible infuence among others of an intellectual bent.
One problem here is that there is way too much influence on choosing philosophy as a career. One college professor told me flat out: "They have to stop telling these kids to go into philosophy." These people could also go into psychology, law, business, or economics. The bottom line is that it is extremely difficult to get a job in philosophy. There are more openings in the other areas.
And in the popular culture?
Robert Heinlein, L. Neil Smith, Erika Holzer.
You are also forgetting about the man who is arguably the most famous Objectivist of all. I'm talking about Jimmy Wales. You can look him up on Wikipedia. He's one of the people who created that web site. This is also why he will never kiss the feet of the Chinese autocrats. He will never censor Wikipeida.
The answer, I am afraid, is all too obvious.
I have an answer for this. However, I would be engaging in a pot-kettle-black argument.