I do not know if this is a multiple choice question or not, but I would argue that this reply is related to the theme of arranged marriages or marriages of convenience within the context of the marriage market. The expression "a man worth more than five or six hundred a-year…” indicates that it was the candidate's yearly income, and not qualities such as his intelligence, his sympathy, his sense of humor, or his rapport with the marriageable woman, the determining factor when choosing him as her future husband, since the goal was to guarantee her a comfortable life - not necessarily a happy one. This turned the marriage into a business or a deal rather than into the voluntary and loving union of two people.
The answer is 'economic concerns versus romantic concerns' you can give thanks/props to Kalahira who commented on the first answer the first answer was good just really long good for explaining easy to learn i know alot of people are just looking for a quick answer