I watched the movie Apocalypto when the main character is about to be sacrificed to the sun god to ask for rain to end the drought and suddenly as he is about to bite the dust the sun does a full eclipse and the ignorant and those brought up on superstitions and no science take this as a big sign and the captive is allowed to live. I do not see that ignorance is  a real "concern" since how can one fight off mass superstition , paranoia and fear? The truth is that at some point the real truth can be found and that always trumps fear, paranoia and superstition, simply science and technology always prevails because we as humans have creative and curious minds and we drag the rest of us along with us.