Bounty Brokers exist in real life :). They are the websites that profit from
Like fiverr, the bounty is the service that the users on the site provide. Of course the bounty hunter is looking to get the most out of its expense of doing the bounty (the analogy to robots is that robots do tasks to get bounties, but the cost to them to achieve the bounty is less than the bounty and in the case of fiverr the cost of me drawing an good illustration is more than paying someone five dollars to do it for me). So, the broker in the case of fiverr is the website, they take a cut of the bounty of the worker.
Everyone gets paid. So, Bounty Brokers exist solely to facilitate the interactions of other bondsmen and bounty hunters.
I’m pretty sure in economics they call these systems producers and consumers. 🙂