I don't think "marketing" is to blame here.

Spam never seems to lead to a legitimate businesses (having to unsubscribe from legitimate newsletters and such is annoying)

And lots of products and services seem to want to extract data and money, but that also feels like it is a result of "product" departments, not the marketing departments.

I do agree with your overall sentiment: It is really annoying to do business with lots of companies out there.