It shows how important having a charismatic person is to make any venture a success. We're all humans with limited time on the earth. We can't possibly experience everything. All we see and do is filtered out of necessity. A charismatic advocate of a product/movement/idea can get people to pay attention.
The best musician in history is probably unknown because they didn't have a good manager/agent.
The greatest painting ever made was probably thrown away because nobody ever knew about it.
Hype men are necessary.