But ignorance in rational agent models of asymmetric information don't cause people to be tricked, so it's can't be ignorance of that sort.

It seems perfectly plausible to me that people understand that the deck is stacked against them, while at the same time not knowing exactly how to protect themselves and so falling for some of the tricks, and would be perfectly happy to have a government they trusted simply remove the bad stuff from the menu. I know that's how I see it.