What "broadly respected civic virtue" can we name our school after?

The elementary school in Madison was going to be named after the Hmong hero Vang Pao, but then the feds arrested him (for plotting to overthrow the government of Laos). So now there's a new school-naming policy:

...Madison schools may be named after prominent local, regional or national figures who are dead, for a locally significant geographical site, for a place of local significance or for an idea or concept that represents a broadly respected civic virtue.

I'm fascinated by the category "an idea or concept that represents a broadly respected civic virtue." First, I love the idea of naming schools after abstractions instead of honoring individual persons. Virtues can't get besmirched by arrest or embarrassing disclosures. Even if you only pick dead persons, new information can emerge about them too.

But virtues can fall in and out of favor. We see that the policy requires the virtue to be "broadly respected," and what is broadly respected today may be scorned tomorrow. And what is the breadth of the broad respect required? Madison? The United States? The world? I'm picturing Diversity Elementary School -- if it's Madison.