The majority of normal people probably don't care as much about "privacy" as some of the vocal folks here do.
I'm not making a value judgement on that, it's simply how it is.
People want to use services like Facebook, Snapchat, Instagram or Google search/Gmail/Google Maps that have the functionality they enjoy.
If those companies can show them targeted ads vs random useless ads, the majority of people seem to be fine with that tradeoff.
I want it to be the year of the Linus desktop for a long while but I've made peace with the fact that's not the majority view. Most people are happy with a proprietary desktop that just works.