I'm not sure getting things done for the sake of it is desirable if it means we have an ocean of copy-pasted apartment buildings like Hong Kong, or unprofitable bullet trains running empty like China, or asbestos products or other things. The notion that we must “move fast and break hearts" on failed ideas is kind of fanciful, because in practice in society we don't often have a clear figure elected to do that; we don't live in a dictatorship where a flick of a finger can end a project after all. Councils and groups of talkers coming together are presumably trying to perform this actual function, and I think we don't necessarily give them credit for that.
Fundamentally, some of that articulate class is trying to preserve some kind of life style that they perceive is rapidly evaporating in the face of cheaply built things built purely for profit.