What people want and what’s good for them
What people want are not always good for them. And people not always want what’s good for them.
The short term success of products depend on how much people want it and not on how good it is for them. But in long term, usually it matters whether the product is actually good for them.
Products that people want, but not necessarily good for them, such as addictive games, drugs and some social networks get popular quickly but has an uncertain future. Products that people don’t want, but are good for them don’t get popular or takes ages to get popular even with a lot of awareness building.
So, if you want to help, you should make something that is not only good for people but also wanted by them.
There are products that people want and are good for them, such as maps, spreadsheets, internet...