Many people in low income countries still lack every item on this list except for smallpox eradication and the sewing machine (indirectly, through imported second hand clothing).

One thing that I have found very interesting is reading what recipients of direct cash transfers do with the money: https://live.givedirectly.org

These are some of the worlds poorest people who get a transfer of several hundred to a thousand dollars via a charity called Give Directly. Although most of the money gets invested into business ventures, one interesting thing that comes up frequently is people buying straw mattresses for $20-30. The people who do this were frequently sleeping on hard dirt before getting the money.