With education, the common man would be able to select leaders wisely and fight back against the tyrannical instincts of those in power.
He would be able to understand, maintain, and protect his rights, so that government could not usurp authority and devolve into despotism.
Sherman Antitrust Act of 1890 was the first major piece of legislation against monopolies. The goal was to keep things competitive. They were trying to keep prices from rising due to a company or group of companies purposely withholding stock or goods to create an artificially high demand for a product and causing the price to rise.