Not every art deco beauty is forged in blood. Not like people need to die for you to stop installing drop cielings and beige cubicles. We've just decided as a society recently that we value spending the bare minimum. These old architectural works, even just from the 1900s-1940s, were from a different time, when property owners wanted to spend extra on making something look striking and remarkable. You don't see that line of thinking in business anymore. Imagine a CEO spending on some ornate HQ building with stonemasons and gold leaf, shareholders would fire them. You only see that level of grandeur today when the CEO founded and still is in control of the company and the shareholders can only sit and pout. Luxury buildings today come with the cheapest furnishings the developer could find on the wholesale marketplace.