not sure what a ceremonial rich dude could have done.
This is the kind of situation in which a king (or president) can make a difference.
Royalty don't have any direct power to order people to do things, but they do have a voice with quite a broad reach. Whenever the king speaks, people will hear it. Even if they don't care about the king.
In a time where people are getting their information from sources curated to fit their own political bubble or economical interests, it's quite powerful to be able to reach a whole country across political and economic interests.
Royalties can't dictate, but they can encourage and motivate people to work together on a common goal despite of their differences.
When something is seriously threatening the country, it would be nice if the king would bother making a motivational speech, so that people, companies and politicians could see the purpose of uniting against the common threat.
It might not sway the opinions of people or companies who have strong interests in not doing anything differently, but it will boost the morale of people trying to do their best, enabling them to rest assured that they're doing the right thing despite of what others might do. We could say it's a really vague forn of long term meta-politics, but sometimes that's also all that is needed to set a direction.
It's not political as such, but more like "yo let's save this sinking ship" instead of passivily watching it happen. It won't fix anything by itself, but it's a good start. Without a good start and set direction, you can be sure that nothing will ever change.
I think this is actually still an issue. On PCs the space bar + up + left arrow keys conflicts on some keyboards. Try it: open Notepad, press two arrow keys and then space. Most of them works but if you hold up and left, it will not make a space.
This is annoying in racing games, when you want to accelerate, turn left and use the hand brake at the same time.