Final answer:
The main point of the passage is that public benefit is enhanced through competition.
Step-by-step explanation:
The main point of the passage is that public benefit is enhanced through competition. Competition leads to the production of better and more affordable trade items and objects. When there is competition, businesses strive to improve their products to attract more customers, which ultimately benefits the public. Consumers get access to better quality products and businesses earn more profits, leading to an overall improvement in the society.