Irresponsible, unqualified, and ignorant marketers believe everything is about the noise they make. They just want to be heard about. What does it matter that you're heard of, if no one knows why they hear about you?
It's about value.
Most marketing tactics are missing the value in their message, and that is why customers are frustrated. They're being victims of the hard-sell, rather than informed of the benefits of the product. The well is poisoned, and now everyone is scared to drink from it.