I won't deny this has occasionally happened to me, but look at your example: it's B2B when my claim is primarily for B2C. B2B ads tend to be more targeted, aimed at corporations, and purchases are for higher dollar amounts. The product being sold was also competing based on build quality, a material improvement.

Businesses often make more rational decisions because they can assign someone to do research (like you did of your own volition) who will make comparisons and think about it.

Imagine the same process happening for shampoo. I'm sure there are some people that want "the best" shampoo, but most of the products are going to be nearly interchangeable and the marketing will try focus on various kinds of manipulation to dig that moat. These manipulations aren't what most people think of, like a sex symbol hypnotizing you. Instead they work to increase brand familiarity, social proof, and provide a life style narrative you can tell yourself and show off to other people with.

The capital hiding behind these campaigns funds newspapers, television, radio, and civic centers. It acts as a filter on the public discourse. If you're interested, look up Manufacturing Consent for more information.

Here's a clip from a documentary based on the book: https://www.youtube.com/watch?v=tTBWfkE7BXU