That already happens though and at some levels even more undetectable by the masses. [0] And if it becomes more common, so will the callouts and public awareness of it. All you're advocating is "the devil I know". There's a third choice: don't give those websites your traffic. I'd rather take no evil than the lesser of two, thank you. Often ethics are tied strongly to the quality of the content. I don't go on buzzfeed and 9gag because they steal content from others when I'd rather consume it from the original source. Readers will just have to be more discerning.

[0]: http://www.paulgraham.com/submarine.html