I see generic ads as a signal that a company strongly backs its product. I see targeted ads a way for companies hocking cheap products to squeeze value out of t

I see generic ads as a signal that a company strongly backs its product. I see targeted ads a way for companies hocking cheap products to squeeze value out of their impressions. The billboards on highway 80/101 in SF are usually rented by big brands with large corporate backing, but their products are usually solid, whereas AdSense ads usually show me what I assume must be dropshipped goods with little quality control (but usually have some sort of novelty value).