In Louisiana after the Deepwater Horizon disaster, people could literally see crude oil washing up on the same shores where they went out to catch redfish and bring it home for dinner.
And yet those same people voted for the exact same politicians that enabled that stuff to happen.
It's not a simple visibility problem. It's a complex cultural issue that relates to the interests of the elites, communication systems, religion, etc.
A big part of why I left Louisiana is because the culture there is so deeply broken that the best solution I could come up with is to escape.