My concern is mainly that my attention is such a huge source of revenue for facebook. So much so that their advertising revenue is consistently several times mo

My concern is mainly that my attention is such a huge source of revenue for facebook. So much so that their advertising revenue is consistently several times more than their actual cost of revenue [0][1]. The gap is so wide, it's hard not to feel like I'm being robbed every time I see an ad on one of these "free" websites. [0]Earnings release: https://investor.fb.com/investor-news/press-release-details/2017/Facebook-Reports-First-Quarter-2017-Results/default.aspx https://investor.fb.com/investor-news/press-release-details/... [1]Q1 2017 income statement (excel spreadsheet): https://s21.q4cdn.com/399680738/files/doc_financials/2017/FB-Q1'17-Income-Statement.xlsx https://s21.q4cdn.com/399680738/files/doc_financials/2017/FB...