Samsung started off as a small trading store / company and later became a sugar refinery. Lotte (another Korean conglomerate) started off selling gum during wartime. Even Nike initially started off with Phil Knight simply being the importer for Japanese Onitsuka Tiger shoes.

This is why I think it makes total sense for good early stage investors to invest in people and teams (as opposed to the ideas). The category or industry they're operating in today is just a small taste of what they're capable of.