Yes. But I am not sure how you transfer the fruits of this labor to your descendants, so they would benefit from it. Every property needs maintenance, and "being rich" (as OP said), or even middle-class, means to have enough property that you need to hire somebody (at least ocassionally) to maintain it.

Also OP talked about building an institution, which presumably means that there are other people involved. Unless he meant something like building a worker cooperative, I feel like in the arrangement he envisioned for his descendants, it will be other people working for them, providing them with their labor. I don't see that much different from feudal arrangements.