Businessmen usually do capital investment when they want to acquire assets that they will be using for their long term goals. And I think, one more thing that contributes to their success is their affiliations. So, as early as possible I think it is important to build connections and be pro active to the people around you so you'll be able to learn from them.
The environment and good connections are very important in business, but it will not always be an important point for increase capital. If the business develops, the sales market grows, production capacity increases, then this will already contribute to an increase in profits, which can be used, among other things, as investment capital.