It advertises its product as being a natural product that provides a certain amount of energy. By the looks their bread may seem to have this golden color that makes a bread lover drool. However, they decide to ignore mentioning using chemicals to make the bread stay fresh for a longer period of time, or using colorants to give that shiny golden look.
All their chemical components may be mentioned on the package but it will be in a chemical terminology that we do not know as simple consumers. The email list chances are that their sales will go higher by promoting the benefits of their bread. Are we to blame the marketing for such a manipulative action? Some do, but is it really marketing that caused this or is it the decision makers at that bakery? In this example we could see the manipulative power of marketing when put in greedy hands.
The distant bakery did not lie about their products ability to stay fresh; they just mentioned it can without stating how they do it. From a professional background, I have to state that there is a problem of ethics when it comes to marketing. The origin of the problem is not marketing; it is some individuals involved in the marketing field.