Copywriters are just sells-persons who can write. For example: copywriting is to be described as a creative process of how to combine words in exact time or exact space or both - for the purpose of sell. To create a message you want best for the brand you work for. For the recipient to buy it. To buy it is to belive you.
Copywriters are message creators. They have the balls to accept the responsibility of creating the words for religion of particular brands. Therefore – know your brands. Demand the freedom on emphasising good thoughts.