YC has a model that seems like it would have stood a credible shot at capturing Google in 1997.
That there are companies more ambitious than Google that wouldn't even consider a "seed stage" is not, I don't think, particularly relevant.
Also: the point of YC is to put fingerprints on the maximal number of successful startups. Ideas from people who aren't inclined to start companies aren't a particularly important part of that. You lost me with "revolutionary ideas". Ideas aren't what's important.