The act of paying for something directly violates user privacy too. Modern businesses use Trust-based National Currency. They are REQUIRED to do so.

Thank you modern anti-money-laundering laws. /s

The best privacy defense is "Nobody Knows Who". Any company that profits explicitly from asking "Who?" is a problem.

The best software asks "Who?" as little as reasonably possible. Companies in general would profit significantly more from software as a service if they did not have to bear the burden of answering "Who?" every time the government asks, or bear the fears of being tied up in legal proceedings for ages for simply upholding the right of privacy for another.

Facebook and it's other related social networks is horrendous software. It's company is actively exploiting "Who?". Advertisements are a largely unwanted fact of life and people are beginning to draw lines and demand 'moderation of Advertisement placement, levels and density' as well as 'more privacy respecting' businesses and services.

TL;DR: If your business model is to invade people's privacy to sell advertising and you charge exorbitant prices to "respect my privacy" in any shape, form or manner; then you have no morals, ethics or scruples and you should fully expect to be censured and shunned by people who value those things in the companies they do business with.