Which is quite fair.
But sometime people pay, despite they know it all.
The point, is they don’t know, that what they know is the solution.
So here comes the smart people, who help them re-understand the solution and encourage them to follow their heart.
They make money, and eventually who didn’t know also make money.
So if you know, go and make money.
And.. if you don’t know, go and make money. Now you know how!