Extended relative legacy?

I’m wondering if I should include extended relatives–specifically, members of my brother-in-law’s family–under the “Family” section on the Common App for UChicago. They’re incredibly well-connected (for privacy reasons, I’ll disclose that one relative is a highly distinguished faculty member). I’m not entirely sure about this, but his family thinks that this connection could be a significant boost for my application.

I would have to list them under “Other”, meaning I don’t have to specify how I am related to them. Is it worthwhile?

bump

I don’t know how much of a boost it would be to your application, considering how distantly related you imply those relatives are, but it can’t hurt to name-drop them.