Although it's only the most evil among mankind that culls those that they perceive to be less than the 'ideal' person, we also don't have 'human nuggets' or 'people noodle soup' on any menu I've ever seen ... be prepared to face severe financial and emotional hardships, should you attempt to raise the status of the chicken so high, or to disregard the manner in which they are designed.
A much more reasonable/accurate comparison might be made between flocks of chickens and schools of fish, in that they are each individually fragile and temporary, so as to allow the flock/school to rapidly adjust to their circumstances/environments. They will, should predators fail, eliminate any individual that poses a threat to the survival of the majority, including those that might otherwise "learn to live with [their] deformity" or "may even be able to live" with the flocks/schools they're hard-wired to form ... that's a critical part of what makes 'em happy.
I've two wounded guineas inside, in cages beside one another ... had there been only one? I'da brought another in, just to keep it company, so as to reduce the tremendous stress that isolation causes them (which would almost certainly hinder recovery )-;~
SoOo ... I'm sorry if you found my suggestion cruel, and it's (of course) entirely your own decision to make, but there are times when culling is a kindness, and the most appropriate choice for the well-being of their flock.