I am targeting a keyword with about 8,000 exacts and I am on the top of third page. Have not really done much seo for this keyword although it is one of my main target keywords for my niche. However, the keyword shows diversified results. About 6 of the sites ranking are related to my niche, the rest are just random which I am assuming google throws in for people NOT searching for my keyword. Do diversified results make it any harder to rank for?