History is full of companies insisting that they show a commercial on the Super Bowl broadcast. Blowing their entire year's advertising budget on one 30 sec spot because over a billion people worldwide would view the ad. (70-90 Million-ish in the US.) And were surprised that no one remembered the ad a week later. Or if the spot was memorable enough, very few could name what the product or company the ad was for.
The cost for a 30 sec Super Bowl spot in 2022 is $6.5 Million USD. That's $217,000 per second. Of course you get a discount if you air your spots more than once, or you are a big network advertiser.