I'm describing a method already implemented by many large companies and one-man shops that do "efficiency engineering" by basically listening to ground workers.

I'm describing a method already implemented by many large companies and one-man shops that do "efficiency engineering" by basically listening to ground workers. One of my employers got better survey results than you're describing despite being over 10x bigger than Uber. Getting the info out of workers hasn't been the hard part in industry. It's getting management to act on it that's hard. Things have to get bad enough, esp in media, that executives are forced to respond and handle policy change top down. Uber is halfway in that position.