I mean, a person's senses aren't supposed to be infallible, but I see no utility in elevating baseless conjecture above them. The "brain in a vat" problem is fun and all but it's based on zero positive evidence, just a lack of negative evidence. On the other hand the senses are giving us continuous and reproducible and interactible information about the world around us, which despite its inherent subjectivity can be communicated with other people's perspectives to approach and approximate an objective understanding of things.
Now when you start shifting from abstract to concrete epistemology, things like symbols and language games and power structures and ideology become important facets to examine. What filters and tensions are influencing a person's perspective? What mechanisms might be elevating or silencing their perspective socially?
We can and should be skeptical of our senses, but in a productive or dialectical manner, testing them against reality and other perspectives in efforts to approach a more concrete understanding.
I'd recommend reading a few historical class analyses and cross applying the method, rather than the conclusions, to the system you're examining. All sorts of factors can influence subclasses of people in various directions, and no abstract category is going to be monolithic. Mao's analysis of the classes in China from like 1926 is succinct and understandable
Who makes up the labor aristocracy, what are their material interests? Are they educated, and in what ways? What is their current economic trajectory, and how is their cultural narrative or mythology shaping their understanding of said trajectory?