But there are more options if you think different from the way things are done now. For example, as a society we can say no to ads on billboards and require that all ads be in one place (e.g. a government-run website), and all advertising could be free. Some other mechanism could decide which ads are more important than others (e.g. review-based or some other method), because filtering based on marketing-budget is probably not the best way to go about it.