Sure, it's called "manners", or "social behaviour". Of course, as time goes on, many informal social rules have been made into law, because someone always figures he can live with the disapproving looks.
As just one example: If you've agreed to meet with a friend and they don't show, without notice, you'll probably inform them that they are in violation of your unwritten agreement.
(I'm not actually in favour of this line of argument, but I believe it's pretty obvious that unwritten social norms exist, and often serve a purpose)
If you argue with that kind of unwritten agreement, I'd argue that ad providers should also adhere to the agreement not to track me, manipulate me or to infect my machine with malware. Which they evidently don't. So I don't feel very motivate to respect theirs.
Well that's convenient. Next time someone does something I don't like, I'll be sure to tell them about the unwritten agreement they're violating.