Shadowing is a passive endeavor done for yourself
This is a unique observation that I haven't heard of before, thanks! I think it will make for a good discussion.
I disagree with your premise--to say that shadowing is indulgent is akin to stating that listening to a professor lecture is selfish in the same way, or watching educational videos on edX is self-serving. Shadowing is a pursuit of knowledge--at least, for me, it was--and that should not be admonished by something like the sin of indulgence. To argue that the pursuit of knowledge is selfish debases why--in my opinion--the AAMC values shadowing:
I need to understand how medicine is practiced, and if it takes me 800 hours to make sure that I may be a good fit for this field, then so be it. I would rather spend 800 hours shadowing to realize that medicine is not for me, than to spend 50 hours, go into the profession unaware of its intricacies only to quit, and waste others' time and effort (and money!). Shadowing is not selfish in the long-term--and I don't think any activity in the pursuit of education is self-serving in that regard.
Spending 850 hours in an international pursuit that is passive and indulgent must be weighed against the ratio of volunteering, community service, etc,
I think it is intellectually dishonest to compare these two fundamentally different activities, especially when you take a ratio like you are suggesting. The implication that I am hearing (and please correct me, I do not want to paint broad strokes) is that you value volunteering more than shadowing, because one "serves others," while the other does not, however I do not think that these two should be compared relative to each other. My shadowing does not detract from my volunteering, and my volunteering does not detract from my shadowing (I don't think you would make the argument that, if I had more research than volunteering, I value academics over service). These two activities should be weighed on an absolute scale independent from each other:
how much volunteering was enough for me to understand the role of service in the field of healthcare, and to understand the meaning of service to others?
I would hope that a program of this length is more organized and interactive
It wasn't a program, I contacted these doctors of my own volition (mostly), and arranged a plan for both summers to observe the incredible variety there is in global medicine. And for what its worth, I am not certified to do anything more than watch, especially internationally. One doctor did teach me how to do sutures (funnily enough, I actually learned laparoscopic first, and then on a banana in the "normal way"!) but this was the exception--I learned with my eyes, I'm not certified to be "hands on" patients, I think that would be highly negligent. What kinds of activities do you consider non-passive, with regard to shadowing?
Isn't passive observation how we learn? Lecture classes and such? Should this be admonished?