That's just not correct, though I understand the point you're making. There is a $300,000 purse for the GP, and it pays 10 deep, so most of those riders will have almost certainly gained their final position as a result of how they placed in Unbound. Sure, they can drop 2, and there may well be riders who drop Unbound as one of them, but those that didn't drop will have Unbound points that those who drop have to overcome somewhere else. Sure, it isn't like they are getting paid a massive amount of their income from the GP, but the prestige of being in the GP is clearly also making money for the US riders, several of whom have six figure incomes. Unbound is the most prestegiousl of the races in the GP, and I would argue that it is the most prestigeous gravel race in the world. It's also far harder than the gravel WC last year, just ask Mohorič.