Worst case for us, someone makes a horrible code change and we just revert it to a prior good state.
Very few things we do in technology are irreversible, so I don't worry about someone doing the wrong thing. I think of these mistakes as very cheap lessons now.
I also recall the meme-like time management thinking about 10 years ago regarding having a block of uninterrupted time to think and produce stuff [be it coding or otherwise]. Someone randomly dropping into your cubical all "did you get that email I just sent you" completely derailing your thought process and hard-booting you back to zero when they scuttle onward with their coffee mug thinking they did nothing wrong in being so sociable. The "I get my best work done between 3am-6am because everyone else is asleep and not in the office" thinking.