Off course Social Media does helps in Search Engine Optimization because through social media we get the lots of traffic and to get the rank of the site.
I think it helps because with active social members everything looks natural. If they are interested in some of your content then they can link to it and it's helpful.
I would say that it is best for increasing traffic although Google updates mean that social media metrics are now taken into acconut for SEO
There are so many benifits of having a social media page. This can bring the traffic, also there is a chance to attain some quality backlinks.
obviously social media network helps seo.a good SEO strategy is incomplete without a social component, and a good social media strategy contributes to your SEO initiative.