In our world it's not enough to create something what people need and what they use. You need to think how to make money from it.
Second good example is Wikipedia. It is one of the most useful projects in the world. But it's pretty hard for them to make any money. And that's why we see banners with asking for donations few times per year.
Both of this examples shows us how two most useful services in the world have to spend theirs resources and our time and attention just for exist.
Product's creator should be rewarded if people use the product by increasing imprint.