A racing bike is a sports/exotic car, and a touring bike is an SUV. Use case and setup is, logically, completely different (when geometries, components, and setup are fully committed to their archetypes).

The Team Fuji sports fairly standard HT and ST angles, identical to the S12-S, but if you look at the fork blades, the S12-S's are quite raked vs the high-speed-focused minimal raking of the Team. The chain stays on the Team are shorter as well for more maneuverability. Tubing is lighter, components are lighter, including wheels/tires.

The Team Fuji's brakes are 'standard' reach (47-57mm) and actually have room for 700x32mm tires, if not 35mm tires. That's pretty darn generous for a speed-focused bike, but it was 1982 and that wasn't out of the ordinary on something that wasn't the tip of the proverbial spear. A 650B conversion would probably work pretty darn well, and look at home. Get some 35mm or 38mm tires and have room to run fenders. It'd look pretty sharp, and handle and accelerate pretty decently, too, all with added comfort. I've seen at least one Bridgestone RB-1 converted to 650B and it looked completely natural. A great way to increase the ride quality of a race bike.