Angus Wilton McLean earned a law degree from the University of North Carolina at Chapel Hill and began his career in politics as the chairman of the Robeson County Democratic Executive Committee. He held various significant roles, including serving on the War Finance Corporation board and as the assistant secretary of the Treasury. McLean secured the Democratic gubernatorial nomination, during which he initiated an executive budget system, established a department of conservation and development, and helped form the Great Smoky Mountains National Park. His tenure resulted in a $2.5 million state budget surplus, showcasing his adeptness at streamlining economic policies.

Angus Wilton McLean's political philosophy is marked by an ideologically agile approach, blending progressive economic policies with a surprising commitment to environmental conservation. McLean's tenure saw an unexpected convergence of fiscal prudence and ecological stewardship, as evidenced by his establishment of a department of conservation and development alongside economic reforms that produced a substantial budget surplus. His rhetorical style likely emphasized the symbiotic relationship between economic health and environmental protection, though the specifics remain open to interpretation. McLean's unique stance on these issues reveals a strategic, multifaceted approach to governance that defies conventional categorization.