How do you see Wikipedia link

Here is my take.
Since it is a nofollow link. It only passes context but strong context.
A do follow link passes both context and SE authority.
So high authority nofollow links makes it easy to rank with relatively non relevant do follow links like your different niche website.
It can be made relevant by making nofollow link with relevant content to these sites.

During your research work there is lot that you could not use. You can edit those Wikipedia articles and build your account while also getting links to suitable content on your site.