How about ethics? Just because something is legal doesn't mean it's the right thing to do. For example:

• Is it ethical to market cigarettes, a product known to have been modified to trigger addiction to smoking, resulting in serious health risks? The product is legal to sell within specific parameters. But is it ethical to market the product?
• How ethical is it for companies to advertise to children? To pay retailers to place sugar-laden cereals at the eye level of young children while healthier cereals are placed on higher shelves? Is it ethical for retailers to set up and rely on this revenue stream for themselves?
• Is it ethical to market shoes made in factories where workers are made to work six or seven days a week, with mandatory overtime? These conditions would not be allowed in North America or Europe, where the products are in great demand and are heavily marketed.
• How ethical is it to base promotion on stereotypes embedded into images, words, and situations because they can resonate with consumers and get attention, create desire, and encourage buying? Consider several instances of stereotyping. How ethical is it to base promotion on these stereotypes, especially when many reinforce gender stereotypes, social inequality, racism, sexism, homophobia, simply because these stereotypes will help sell products to consumers who want to buy them?