Ayn Rand was greatly wronged by the Bolshevik elite and was sent into exile and then sided with the elites here.
How much do you know about Ayn Rand? As far as I know, neither she nor her family were particularly "wronged" by the communists, at least not directly in terms of being chosen for persecution. She was not exiled from Russia. She fled. I think she was somehow able to obtain permission to travel to the U.S. to study film making and quickly decided that she was never going back.
Rand was not born into wealth nor did she really enjoy wealth during her formative years as far as I know. I doubt she would have ever viewed herself as "siding with the elites". I'm under the impression that in her view, the philosophy she advocated was good for the little guy, too. She also thought laissez-faire capitalism would benefit the poor and the lower classes since it would lead to widespread economic prosperity.
The radical route. Sadly, Ayn Rand never learned her lesson about the reality of the same totalitarian in the name of liberty (ahem *for the people*) types she backed here for revenge.
I doubt that her motive for her philosophy was revenge. Rather, she sincerely believed that what she was advocating was objective and correct. I don't think revenge against the Soviets had anything to do with it.
I've read most of her writings and I never got the impression that she was concerned with getting revenge. If anything, she probably regarded the Soviets as irrelevant. She would probably have been more likely to think that the U.S. should just ignore the Soviets, refuse to trade with the Soviets (boycott), and just let their failed political and economic philosophy wither and die. I don't think she ever advocated invading Soviet Russia.
For political reasons people who matter (the rich and wanna-be) here rally behind her with the red scares. A convenient radical ideology for the ruling class here and a great tool for the wealthy.
She offers them a comprehensive philosophy which says that capitalism is the only moral political systems. It's not merely that she says that, "Capitalism is good." Rather, she offers an entire ethical and meta-ethical framework to back it up.
I was a heavy-duty Ayn Rand fan/Objectivist years ago before my political philosophy and some parts of my meta-ethics and ethical philosophy changed, but I'm still a fan. Today I advocate a mixed economy and even socialized medicine in addition to advocating reason and atheism. However, I still want to defend Rand and Objectivism against misrepresentations.
The Objectivist philosophy is deep and comprehensive, and even internally consistent. Today I disagree with much of its politics and some parts of its ethics, but it's wrong to dismiss it as merely silly irrationality. Excellent arguments can be made in favor of laissez-faire capitalism, and it can be argued that it would benefit almost everyone, even the poor. (However, if you're able-bodied and lazy or a drug user or otherwise just completely irrational, then capitalism might not benefit you. If you want to live on welfare and have ten kids while getting high on crack cocaine, capitalism won't be a benefit to you.)