Answer:
In any regard, supporters of laissez-faire governmental policies were often advocates for the "free market". They would suggest that federal or state involvement in business would stagnate and decelerate the growth of the economy. The "invisible hand" of the market does not actually exist, but this argument would be made in order to support the assertion that government involvement was not required. In reality, significant economic downfalls of the past could have been avoided, had the governments of "unregulated business" nations played a more active role. Claims such as these were made for the purpose of promoting a self-sustaining economy, even when such a thing cannot coexist with financial disparity.
I hope this helped you understand the motives behind laissez-faire business and government policies. Blessings to you.