You can't do much about users that just don't care. But more technically inclined folks often do care and these are the people that develop the web and maintain the computer/browser for other people.
A lot of folks in my circle use chrome, but the moment the AdBlock plugin stops working they'll likely switch to anything that works better. They are not necessarily too concerned about privacy, but they also don't want to have most of their browsing made effectively impossible by ads everywhere.
I mean, just try and use the web without any sort of blocking. A lot of sites don't even have their content visible.