I am not sure the creation of a formal process (created by those who have the power to create formal processes) is inherently more fair to those without power t

I am not sure the creation of a formal process (created by those who have the power to create formal processes) is inherently more fair to those without power than an informal process. A formal process isn't inherently more fair. It's only potentially more fair. You need to look in detail at the process to see if it's more fair. The rest of your argument is a bit like arguing mathematics won't help you build a bridge - "The math could wrong and the user could be biased and even the best can't reflect reality exactly".