RESTBase is able to provide Wikidata descriptions as part of a request to get the page summary.

For example, this is the extract from Obama's page:

"Barack Hussein Obama II (US /bəˈrɑːk huːˈseɪn oʊˈbɑːmə/ bə-RAHK hoo-SAYN oh-BAH-mə; born August 4, 1961) is an American politician who served as the 44th President of the United States from 2009 to 2017. He was the first African American to serve as president, as well as the first born outside the contiguous United States. He previously served in the U.S. Senate representing Illinois from 2005 to 2008, and in the Illinois State Senate from 1997 to 2004.
Obama was born in Honolulu, Hawaii, two years after the territory was admitted to the Union as the 50th state. He grew up mostly in Hawaii, but also spent one year of his childhood in Washington State and four years in Indonesia."

And this is the description:

"44th President of the United States of America"

Some pages may not have extracts, but have descriptions. For those pages it would be nice to at least show a description. It doesn't cost anything extra from performance stand-point to do so. The question is should we?