While Google states that structured data bears no weight on page ranking, Google does use structured data to help categorize content and to display additional information along with a search result. They call these 'rich snippets,' and they can take the form of featured carousels at the top of the results page or as elements such as reviews and inventory availability appended to an individual listing. Whether they appear at the top of a search results page or further down, rich snippets are far more prominent and visible than standard results and thus have better click-through rates.