The same wealth information may be returned from Wealth screenings on both individual (spouse) records that make up a Household record.  For example, stock may be returned on both spouse records when it belongs to just one individual.  The Household wealth calculation does not double-count wealth information that has been confirmed on both records, but it does use the most recently updated record to calculate the household wealth.  Therefore, there are no negative implications to confirming wealth on both, with the exception of a divorce, which is a situation that would require additional research under most circumstances.