“You won’t have luck implementing a sensible solution on a dysfunctional system” is an evergreen answer which doesn’t offer any insight. It’s a cop-out and discourages any attempts at improving anything.

Not everyone works for big corporations, and of those who do some work in departments with sensible bosses where they can make some change.

As an exaggerated example, we could also say “one way to resolve issues in a community is to gather the people involved and have them talk through their issues in a room with an experienced impartial mediator to help guide the discussion” and then have someone reply “good luck trying that at a maximum security prison where inmates are constantly confined to solitary and beaten by the officers”. Yeah, no shit. You have to adapt your solutions to your environment, but that’s no reason to dismiss a general starting concept.