Two possibilities:
- the goal isn't to convey information, it's to appear to convey information so they can defend themselves later on
- we tend to hire artists who are concerned with appearance into roles that require visual engineers
The former seems to be something that the UN struggles with. For instance, they can't indicate how many people have coronavirus in Taiwan because they need to consider the feelings of their member states. And they can call one recent coronavirus "Middle East respiratory syndrome", whereas another has to be called "SARS-COV-2" to avoid racist implications of a geographic name.
The latter is a widespread problem. For instance, once upon a time, software design gave consideration to making it easy to approach and use, especially by people who might be using computers for the first time. Nowadays, it's primarily about making sure the software looks fashionable.
My trust for international organisations has gone down the loo thanks to this outbreak. I am sad.