In business is the use of social media a requirement for success and why or why not?

In business is the use of social media a requirement for success and why or why not?

Social Media: Sacrificing privacy for sake of success
The post-Snowden era has made us more aware of privacy issues and concerns when using social media. Yet its use, especially in business, is increasingly seen as a requirement for success.
Discussion Question: In business is the use of social media a requirement for success and why or why not?