I feel some people are good at (or trained for) juggling big responsibilities that affect other people as “They depend on my system as a service provider”. I’m not so good at it so I feel these responsibilities are very heavy, and a type of cancer-stress.
Someone like Josh, Larry … need to be on the ball and keep track of the large number of (big or small ) changes affecting “his baby”.
In contrast, as a foot soldier I only have obligation (professional responsibility) to keep an eye on my project or my module. Some foot soldiers are eager to learn, but usually her scope of responsibility is much smaller.
Stay on top of “everything” — as a parent I have to be on top of everything about my kids and my house.
LocalSys — If I don’t understand one of many things in and outside my team’s applications, I don’t need to struggle to find out and clarify my understanding.
 it’s not always straightforward to determine if a change is big or small. The app owner need to quickly estimate the impacts of each change. Sometimes the estimate is inaccurate. There’s a bit of risk.