Huh? You just said you are dinging him for making a relationship but then admitting that there is a relationship (albeit partially).
Let's pretend a consultancy is the equivalent of rent-a-center and an individual consultant is a rented out TV. I'm a consumer and I want to rent the TV. I know the TV cost (I searched it on Amazon) and I know I'm just renting it for x amount of days. I know exactly what I'm getting for the price I pay; I get to watch TV for a certain period of time. When building a consulting practice this concept is a bit harder to achieve because the customer has no idea what they will get for $150/hr or $400/hr. They may get a TV that only works for half of the day or for a quarter of the day or half the screen only works sometimes. If it was that easy to assess a person's talent then the customer would just hire single contractors out.
I don't think Jason articulated what he meant by "worth" correctly. You're right in saying there are other values (hence worth) attributed to paying for consultants. However, I think what he is addressing is the fact that potential customers have a very hard time deciding what value your second, or third or fourth consultant is in your newly established consultancy practice. Who are you (as the consulting director) to tell the potential customer that your employee is worth $X/hr? Doesn't the customer ultimately assess the value of what they are buying?