Turner is an intelligent man with an extraordinary range of personal experiences. He is not un-typical in expressing his passionate and sincere desire for saving this planet by challenging the biggest change agent at the highest hierarchical level his intelligence can identify. After all, that is what he has been doing all of his life. Mostly, he has succeeded in winning those challenges. As the only non-development oriented speaker, Turner's remarks were mostly lost in the panels and discussions that followed.
Developers are in business to make money and they want to develop something.
Some would like it to be more sustainable, while being profitable, and they are learning how to do it. Perhaps the current Clinton affair has sharpened the public's crap detector which allows major figures to be tried, judged, and skewered almost instantaneously. The salient point in all of this discussion was whether growth is accepted as inevitable, or is a factor that global society can manage. Most people don't doubt this. The important issue here is what kind of building and developing should we do to accommodate and manage where and how this growth will occur.