It’s worth noting that many prominent libertarian thinkers were still more suspicious of business than Rand was. From Adam Smith to Milton Friedman, they worrie

It’s worth noting that many prominent libertarian thinkers were still more suspicious of business than Rand was. From Adam Smith to Milton Friedman, they worried that organized commercial interests would use their political influence to undermine free markets and promote special interest legislation that benefits themselves at the expense of the general public. Since the phrase "at the expense of the general public" is a non-sense term that cannot be defined she rejected it as the basis for any law or moral principle. What she advocated instead was individual rights as laid out in the US Constitution. The reason she wasn't "more suspicious" of business was that under Capitalism the gov't would not have the arbitrary power to bestow benefits or punishments on anyone.