When people aren't carefully oriented to reality, the result isn't just ignorance, it's ignorance indulged and defended. People become addicted to their ignorance, doubling and tripling down on it, digging in their heels, unwilling to surrender it.
The naive belief that history is linear, that moral progress accompanies technical progress, is a form of collective self-delusion. It cripples our capacity for radical action and lulls us into a false sense of security. Those who cling to the myth of human progress, who believe that the world inevitably moves toward a higher material and moral state, are held captive by power. Only those who accept the very real possibility of dystopia, of the rise of a ruthless corporate totalitarianism, buttressed by the most terrifying security and surveillance apparatus in human history, are likely to carry out the self-sacrifice necessary for revolt.