After talking with Grevy, Shire realized that he had a misconception about the "traditional nobility" of this era.
He had always thought that "traditional nobility" practiced top-down authoritarian rule like the nobles of the feudal era, but in fact, today's "traditional nobility" have also changed with the times. They support elections but oppose industrialization.
The basic support of the "traditional nobility" comes from farmers, as they rely on farmers renting land or paying grain taxes for income.
However, capitalists building factories have transformed farmers into workers, causing the "traditional nobility" to lose their base and gradually their economic resources.
Thus, the struggle between the left and right is essentially a struggle by the wealthy over workers and farmers.
Left-wing capitalists call out to farmers: Come, become workers, and I'll give you wages!
Right-wing nobles call out to farmers: Continue being farmers, and I will give you a better life!