Unethical persuasion can have severe negative consequences, including loss of trust, reputation, and even legal repercussions. For instance, a company that uses deceptive advertising to lure customers into buying their product can face lawsuits, negative media coverage, and loss of customer loyalty. To avoid these negative consequences, organizations and individuals should adhere to ethical persuasion principles, including providing accurate information, respecting the recipient's autonomy, and avoiding the use of fear tactics or emotional manipulation.