In a way yes, but for me it's not about that. It's about not letting everyone and their mother execute their code on my machine for whatever reason. Ads, tracking, cryptomining, surveillance.
Mind you that I am only running NoScript and not a "real" adblocker. Show me ads in a static image and I'm fine with that. Selfhost the ads on your own domain and you are also going to get whitelisted.
I mainly do it for cases like this where Stackoverflow has enabled an ad network that is pushing code to all of their users that is doing some weird things (like querying/opening audio devices) and stackoverflow is not even aware that it is doing that. What if it was a cryptominer?