It is not like Sergey Brin and Larry Page came to you and you wrote them a check for a hundred grand just for an idea. That never happens in the venture capital world. Remember the first motto of a venture capitalist? “Ideas are cheap!”
The main reason people like Steve Jobs become a prophet is because they have imagination, which the majority of the investors, including venture capitalist, do not have (and do not need).
BTW: imagination usually goes (or not) hand-in-hand with a true genuine curiosity (but who has time for questions which will not bring any profit?).