The better positioned the more clicks your page is likely to receive and the more traffic your page gets.
Organic and paid are the two types of search result. When a company appears in the top positions of organic results, its content carries more credibility than the paid results. It is not uncommon to hear people saying that they don't click on ad results.
A good SEO implementation will keep your return on investment for a long time. Unlike Ads strategies, which interrupt the results when they are paused, one of the advantages of SEO is that your company continues to receive the return even after the end of the direct investment in the action.