Yeah but in general if you're trying to minimise disaster instead of maximising being the winner, you opt for doing things that avoid revealing you as the being the only wrong one. Being wrong in a crowd is fine. Being the only one wrong is a big deal, "what were they thinking, they knew better than everyone else?!". If everyone does the same mistake, it's just shrugged off as "honest mistake, everyone was doing it."

Plus either way you're cutting expenses and maybe getting rid of some under performers.