How significant is the impact and expense of advertising?

"Most Americans are bombarded daily with advertisements to buy things. Traditional advertising is any paid form of nonpersonal presentation by an identified sponsor. It may appear on television or radio; in newspapers, magazines, books, or direct mail; or on billboards or transit cards. In the United States, children between the ages of two and 11 are exposed to more than 25,600 exposures to advertising through TVs and online exposures a year. Adults are exposed to three times as many—more than two million commercials in a lifetime. 6 The money that big corporations spend on advertising is mind-boggling. Total advertising expenses in this country were estimated at more than $206 billion in 2017. 7 Global advertising expenditures are approximately $546 billion annually. 8 General Motors is America’s largest advertiser, spending over $3.1 billion annually. This is slightly over $350,000 per hour, seven days a week, 24 hours per day. America’s biggest global spender on advertising is Procter & Gamble at $4.6 billion. 9 Nissan was a sponsor of the 2016 Rio Olympic Games and provided 5,000 vehicles for the events. Ads for the 2018 Super Bowl cost between $5 million and $5.5 million for a 30-second commercial. A 30-second spot on NBC’s Sunday Night Football costs about $650,000."