[crazygringo]

A typeface is a key part of an organization's visual identity.

A typeface expresses many things, you can imagine it as different sliders along, say, 100 different dimensions, similar to songs expressing combinations of feelings.

An off-the-shelf typeface will express things that are close to exactly what you're looking for, but almost never exactly 100%. Commissioning a font gives you exactly the visual identity you're looking for, zero compromises.

Additionally, distinctiveness/uniqueness has its own value too -- corporations commission typefaces so no other brand will share the same identity. For a large nation-state, that carries the same value.

(Although, unlike a company like Microsoft or IBM, I'm not sure if the US Government can prevent any private company from using it?)

[JorgeGT]

In this case, the most powerful nation-state on Earth established its exact visual identity by forking a font from an Argentinian dude whose last pic on Instagram is of Ernesto "Che" Guevara x)