Her philosophy was sound for business and government, if a tiny bit extreme. It’s when people started applying it to personal relationships that it went astray. She, or her followers, just went too far with it.
I once heard someone who knew her speak at a meeting. She told this little anecdote that I don’t think is recorded elsewhere: She said Ayn had just bought an article of clothing that was on sale, and said something like “I got it at a much better price.”
Then she corrected herself and said something like, “No. That WAS the price.”