How Google defines a national treasure:
A national treasure is a person, object, structure, or cultural work officially or popularly recognized as having exceptional value, representing a nation's identity, history, or core values. It often signifies something beloved by the public or, in some countries, legally protected due to its immense cultural significance.
Beloved Individuals: Often used to describe renowned, long-serving, and respected public figures—such as actors, musicians, or broadcasters—who are widely adored.
National treasures need to be respected, and some musicians like Mick Jagger and David Bowie were maybe a bit too scandalous to be described as national treasures, or were they? 😂