Referral traffic is much more beneficial to the SEO of your website as opposed to organic traffic, which has little to no effect. The reason is that Google and other search engines interpret backlinks as little doses of credibility for websites.
To provide a large amount of organic traffic to the website, you create backlinks on high quality website. Top social media sites are better for it because it comes under referral traffic. Referral traffic quickly increases your website ranking on the search engine result page.