Creating an image online is very important for an artist these days. The quality of your sound is one step, but getting recognized as a good artist/producer is another one.
As people visit your website, Soundcloud, Twitter, YouTube, etc... they will get a first impression of you and your music, just from the amount of followers, likes, views or plays you have. If let's say your Soundcloud page has 10 songs with a couple of thousand plays each, people will be more tempted to play one of your tracks than when you have only 10 plays on each beat/track. If people then like what they hear they'll might even follow you. This way you will create an image online, which reflects your music.
The hardest thing about it is getting started. Luckily, this is where GetSocialOn.com can help you. We offer a cheap solution for musicians to let their musical abilities match up to their online presence.