If ads were merely about being informative, they would be boring. But ads want to manipulate, so they have to be flashy and appeal to your emotions.
They pollute your mental headspace, and have no place in a healthy society.
Let's ban billboards. And then let's follow that up with a general purpose ban on paid advertisement.
Even if you personally choose not to buy overly advertised goods, the overwhelming majority of people will not make the same choice. Advertising works extremely well, and it will always work no matter what you or I do.
So we will still have the problem of excessive advertising, which negatively impacts even people who try to ignore that advertising.