People very rarely "get it" at first for things that become big. Anything obvious will already be attempted by larger corporations.
Google was initially so unappealing to investors they would go out the backdoor to avoid talking to the founders. AirBnB has a long, fascinating story of them struggling to get off the ground. Amazon was laughed at for competing with brick and mortar. Tesla was considered idiotic to compete with big auto, who presumably could put their weight behind electric and crush them. Likewise SpaceX was crazy to complete with legacy defense contractors. And so on.
Also, from personal experience, most investors aren't that smart. Investors are just people. How smart do you think the average person is?