The members of the Progressive Innovation Party have always been a bit eccentric.
In the game, just looking at the associated quests reveals all sorts of bizarre conspiracy theories, anti-vaxxer rhetoric, and other absurdities.

In contrast, the Equality, Liberty, Constitution Party, which has a name that might raise some eyebrows, is surprisingly genuine. They sincerely strive to harmonize equality, liberty, and constitutional principles, and their political philosophy is well-researched and methodical.

Compared to that, the Progressive Innovation Party...
Despite carrying the lofty ideals of "progress" and "innovation" in their name, they embody the exact opposite of those values.

Just looking at the face of the district mayor tells you everything you need to know.
In this day and age, how is it even possible for someone in such a high-ranking social position—enough to become a district mayor—to have an aged, overweight appearance without taking any anti-aging measures?

If they were just taking their meds on time, obesity wouldn’t even be an issue. But their ideology is so rotten that they indulge in pointless conspiracy-driven social movements, rejecting and denying the fruits of science. That’s how they end up looking like a caricature of themselves.

Because they’re that deluded, whenever they act, it’s always reckless and poorly thought out.
This time, too, they’ve gone and shoved their spoon into a bowl someone else prepared.