Why is income figured differently by company, type of loan, card, grant, or whatever you are applying for?
Most loans want only personal income that comes from wages or another steady source in your name and not any outside income you receive from family members who contribute to the total household income or from rent you collect on a house you manage for someone. Credit cards will sometimes allow a little more of your household income to be counted that you have access to. So you are denied by everyone for lack of income.
Now try applying for any low-income program like legal aid, medical services, or education grants and loans. All income income is counted from everyone in the household whether you can use it or not. Any potential outside income is counted, refunds, pay raises, any money someone might pay you back, and other income you don't need to report to the loan or credit card providers. Now you have too much income.
If you can access all this money for one program why isn't the same money considered in the same manner by everyone?