Factories in debt:

Poor will benefit:

More chance to work:

Because it's way faster and easier to se clothes, more will be made, equalling more sales which will result in more income.

PROBLEM

The sewing machine solves:

Because there are more sales, the sale price will go down making it easier for the poor to purchase clothing and stay warm

Because sewing is so easy with this machine, more merchants can make their own business and be able to provide for their family with the income. And women will have more time on their hands to find a job and increase the income for their family with both parents working, or they could sell the clothes they are sewing.