Which of the following actions is not an ethical violation?

Charging a premium for a superior product is not considered an ethical violation because it aligns with fair market practices. In this scenario, the pricing reflects the value and quality of the product being offered. When a product genuinely has better features, performance, or durability, it is reasonable for a company to charge more. Consumers are expected to pay a higher price for the added benefits they receive, and this transparency contributes to ethical business practices.

In contrast, the other options involve unethical practices such as designing a product to fail or using proceeds from one product to manipulate market pricing, which generally conflicts with principles of honesty and fairness. Pricing strategies should be based on the value provided to consumers rather than deceptive practices or exploitative tactics.