1)
What is the purpose of the Otzaros?
1.
Rashi: It is to increase wealth.
2)
What is the meaning of "bi'Leshon Shaker Hevel Nidaf Mevakshei Maves"?
1.
Rashi: They are traps of death for him.
2.
R. Yonah: The storehouses are like chaff that the wind drives them away. A simple occurrence will destroy them. They will not help their owner; they will destroy him and make him perish. They seek his death and pursue his fall - "Ki Even mi'Kir Tiz'ak" (Chabakuk 2:11).
3.
Malbim: [He amasses storehouses] via false testimony, forging documents, imitation metals
1
The Torah does not obligate death for forgery or false monetary testimony! Perhaps kings used to kill for this. (PF)