Arguing the roles of women in the hierarchical society, she claimed that some features of women become exploitable under the patriarchy system. Leacock interpreted the structure of marriage as the structure of exchange and the division of labor. The exploitation of women's labor within the household is the same.
The writer is discussing how women's roles in a hierarchical society can be taken advantage of under patriarchal systems, and she cites Leacock's analysis to support this claim. She suggests that the structure of marriage parallels the exchange system and labor division.