An applicant's financial information is among several factors used to determine the amount of insurance the company is able to issue to an applicant. This information is required by ALL insurance companies as they must justify the coverage amounts of all policies they issue.
Income multiples are one method of calculating coverage amounts, which is why annual income is required. Net worth helps insurance companies develop a picture of the family's overall financial position and potential loss in the event of the insured's death.
A common misconception among insurance consumers is they can purchase any amount of life insurance they desire, regardless of financial considerations. This simply is not the case. All insurance companies use financial information to determine allowable coverage amounts. This is done to control fraud and limit excessive insurance situations.