As a researcher looking up information in my Wikibase instance, I want to see statements from the associated Wikidata item on the item page in my Wikibase, so that I can see and use the richer Wikidata info without having to ingest Wikidata data all the time.
For example, say I'm looking at Monet in my Wikibase. I don't have very many statements about Monet in my Wikibase. But, because I've associated my Monet item with the Wikidata Monet item, the statements on the Wikidata Monet item display on my Wikibase Monet item page.