There's a reason they say wealth only lasts three generations: The first generation builds the wealth, the second generation watched the wealth get built and understands how to build more of it, the third generation only understands that there is wealth and can only maintain it.
Here we see the fourth generation, who believes the wealth will last forever without being maintained and will squander it. Jinya only knows they have a village, and knows nothing of why they have a village or what it took to build it, and believes they will have it forever. If he has his way, they will lose the village and gain nothing in return.