The vast majority of SEO traffic comes from links in the top 3 positions in any given search results page. If you can crack the top 3 by optimizing anything in position 4-5, you'll see a big boost in traffic. This works regardless of whether you’re on page 1 or page 3, so even if you can’t crack the top 10 for a search, put in a bit of effort to make sure you’re top of the specific page you’re ranking on.