There's the same kind of incentive not to be the closest moth to the lightbulb, and yet....

The race-to-the-bottom/die-at-the-bottom reward structure only prevents disaster if the racers are invested for the long term. The agents in charge will have a high tolerance for that kind of risk if they hope to retire/sell before the money train jumps the tracks. I don't know if that's a hazard this industry is currently falling into, but it's a likely failure mode if nothing sufficiently enforces agents taking a long view.