I will stand ten toes down to defend that brutalism, as the philosophy of being honest with your material usage, is the most Beautiful form of architecture.
Most people will agree that mid century architecture is one of America's most beautiful designs. The school of thought behind all famous mid century architecture is always that of honest material usage.
Now what does honest materials mean? It means when you're using wood, you emphasize the grain. If you're using metals, you embrace it's utility. Stainless steel conveys surgical levels of cleanliness. When using brass or copper, the patina is expected. Stonework, isn't used as a façade. The inclusion of masonry is obviously structural, and it's implementation is deliberate and planned out like a painting.