In my experience, a lack of process or roadblocks in the way of developers is mostly orthogonal to how willing you are to break things in the pursuit of speed / agility. I've worked in process heavy places where people were content to throw things over the wall, and shipping a feature with less than 200 known bugs was considered a good thing.

I've also worked in places with near absolute freedom, right down to the level of individual engineers building out new products without approval where a single crash meant all hands on deck.