Advertising is unethical in my opinion when it lies or misleads, or it fosters fears and impulses that negatively impact individuals quality of life, or their social contribution and therefore others' QoL. One example is advertising toys to kids during kids programming: most of this is done in a way that makes kids feel left out for not having the toys, relies on FOMO, envy, and molds susceptible children into more jealous and materialistic people. It misleads them with its imagery into thinking they will be extremely happy if they just have that thing. I think that perhaps even the majority of what is done as accepted practice in advertising (across all its forms) is harmful, and further, it will stay that way because the $ales a campaign generates are the only measure of success as far as success is rewarded.