Email marketing is a form of marketing. Marketing is a global and holistic strategy with one final goal: generate revenues. There are many ways of achieving this goal, from direct marketing to branding.
Email marketing is a part of a global marketing strategy. Social media marketing too. Customers are increasingly online. They decide when, where and how they want to connect. And why: to gain information, buy, complain, talk, comment, interact, etc.
Marketing should strive to get a global view on the customer by tracking all online and offline interactions. The goal is to create customer satisfaction.