It's nice to have a good square and a good straight edge for handwork and machine work. Beyond that, I'm not sure more "precision" measuring capability is needed when making "bespoke" items with hand-tools. On the machine side of things, I use a 1-2-3 block all the time on my table-saw for safe, accurate crosscuts. I do use some "precision" measuring tools to set up equipment.

Interesting post, provokes a few thoughts, especially since I was making some mortise & tenon joints last night, realizing if I could saw to a line more accurately I'd have a lot less effort to fit the joints and also that since I was using the mortise to size the tenon, I did not need any measuring tools beyond a small square.