What if, what if, what if, what if, what if?
VS you could easily flip your situation and say your working a cardiac arrest and someone stops you for a broken ankle. Hey you got multiple people in the back working a stable (dead) patient why not help Mrs I've fallen and can't get up?
I've been in this field since 1988 and never had a situation like the one above. So let's drop the what if crap please.
In short, some systems say you must stop, some say you can't stop. The real answer here is that none of us have a choice either way. Our directives state what the response is, not our personal feelings.
It would only come down to money here VS if we still had the cowboy system of ambulances services. Luckily most of those have gone by the wayside.
Everyone get over yourselves and learn what your department/city/county/province/country says you must do. I have the feeling a lot of the people stating their opinions here have very little experience and love to deal with what ifs.
JEMS = Fancy adds and superferlous articles, so who cares if they are stroking up some more wannabes to 'serve their community.'