Let's not look into our heads for clear terms, but rather operate on actual FB's Terms and Conditions document, which does not include anything about me watching their ads or not blocking them:
Also, index page of Facebook says in huge letters that "It's free and always will be.", so not sure why you are so eager to prove I am to pay for it somehow.
http://facebook.com/terms
Also, index page of Facebook says in huge letters that "It's free and always will be.", so not sure why you are so eager to prove I am to pay for it somehow.