It still comes down to risk management.

VCs manage risk differently than bankers, but they still need some form of assurance that their investment will bear fruit. They are not as rigid as bankers but they are still in the same position of having to rely on proxy signals to predict the future.

They can catch more non-conformist value builders† but not every single one.

†For a VC, innovation is a means to building value, not an end to itself. Often the 2 are used interchangeably but only the finances matter in the end.