I don't think it's surprising that there's little relevance between somebody's financial wellbeing/decision-making and their tendency to believe misleading or false news that concerns political identity/ideology.
I see this complaint a lot - "hey, we/they are not like that", in response to a discussion about some perceived problem originating from within a broad group of people (I see it happen on all sides, but maybe more often from conservatives in response to liberal "elitism"), and often it is legitimate, but a lot of the time it sadly is just used as an off-topic attack on the conversation. E.g. when somebody tries to discuss the "bad apples" in the police, instead of actually discussing them, the conversation often gets shifted by indignant supporters of the larger group, in this case all police, who feel attacked by the conversation. I often wonder how to avoid this - obviously the person bringing up the controversy must not have an aggressive, accusational tone, but even then these kinds of reactions seem omnipresent in any forum. I wonder how many of the people reacting this way are just reacting emotionally, and how many truly believe the premise of the topic is actually utterly false ("there are NO bad apples in the police"), or feel that it might be true, but that the framing is somehow always an irrational attack on the entire group they are a member of.