Sharing to social media is important because Facebook, Twitter and Linked In are such huge drivers in traffic. You should optimize you content to attract you desired conversions.
If you are sharing links for your website, you need to optimize for CTR or click through rates.
There are different requirements for the different social media sites so when possible it is best to inspect and preview what your content will look like when it shared.
Facebook, Twitter and Linked In all have tools that allow you to inspect before posting.