Monopolies and cartels are unfair to other business owners and people buying the products that they make because they limit competition and allow the monopolistic or cartel companies to control the market. In a monopoly, there is only one company that produces a certain product or service, which means that consumers have no choice but to buy from that company. This lack of competition allows the monopoly to charge higher prices and offer lower quality products or services, as there are no other options available to consumers. In a cartel, multiple companies work together to control the market, which can lead to price-fixing and other anti-competitive practices. This can result in higher prices and lower quality products or services, as there is no incentive for the companies to improve their offerings. Ultimately, monopolies and cartels stifle innovation, limit consumer choice, and create an unfair advantage for the companies involved.