Just because the Washington Post (who makes their money from...) says there is an ethical dilemma doesn't make it so. I once tried to make it an ethical argument, then the sites and advertisers decided they weren't going to take part in that argument ("'do not track'? Nah, we decided that's not going to work for us."). Works for me, I'll not have the argument, either.

So, thanks web sites and advertisers, I lose not a minute of sleep as a result of surfing the web ad-free.