Investments come in completely different types. What you said is a financial investment. There are also investments in land, investments in nature, investments in the future of the people (this can be investments of any plan) or even investments in yourself (when you use time and money to improve, because it will pay off in the future in the form of health or knowledge that can be used to do something). I said this because we (people) often forget that money is just a tool to achieve some goal.