Marketing is the study and management of exchange relationships. Marketing is used to create, keep and satisfy the customer. With the customer as the focus of its activities, it can be concluded that Marketing is one of the premier components of Business Management - the other being innovation.
Living organisms including humans are social when they live collectively in interacting populations, whether they are aware of it, and whether the interaction is voluntary or involuntary.
By the way, if anyone here is in advertising or marketing...kill yourself...you're the ruiner of all things good...you are Satan's spawn, filling the world with bile and garbage...kill yourself.