There are many positive side-effects to having a moderately high Domain Authority. Better search engine visibility guarantees more traffic, leading to more exposure and brand awareness, and thus increasing the chances of landing in more social shares and natural backlinks. Now, those are pretty good influencers of the Domain Authority metric themselves, so you can basically say that once you start rolling the ball, it continues to gain more and more momentum everyday.
Here are a few ways you can improve the Domain Authority of your site:
Content & Infographic Courtesy: TechTage