SEM involves paid advertising, such as Google Ads, where marketers pay to appear at the top of search results. Organic rank, on the other hand, depends on non-paid factors like content quality, backlinks, and user experience. For affiliate websites, SEM does not influence organic rank because search engines use separate algorithms for paid and unpaid listings. Organic rankings are determined by relevance and authority signals, which paid ads cannot directly improve. Therefore, while SEM can drive immediate traffic, it doesn't enhance the underlying SEO metrics that boost an affiliate site's organic position. This separation ensures fairness and integrity in organic search results, keeping paid promotion and natural ranking distinct.