The epistemological standards of contemporary social sciences refute ‘functional’ and ‘law-like’ explanations, whereas mechanism-based causal explanations have become widely accepted in various fields of inquiry. The paper supports the hypothesis that authors Vilfredo Pareto and Gaetano Mosca, despite their deference to positivist epistemology, significantly anticipated these developments. Indeed, with their emphasis on history, contexts and agents, elitists ushered into the debate of their time some arguments that realist epistemology fully developed, emphasising the role of context-specific and, often, not directly observable (...) explanatory features. To illustrate the ante litteram epistemological realism of elitist thinkers, the paper reconstructs the positions of Mosca and Pareto concerning two major themes of that time, in which elitists challenged the mainstream ideas and values of most of their peers with epistemological arguments that refuse a linear notion of causality. (shrink)