Herin lies the problem.
We have a healthcare system that allows the individual to contribute just what they chose to, in order to practice. Be it 120 hours, a 4-year degree, or anything in between.
It's wrong though to place the blame solely on the individual EMT, as that's just the way EMS is. You want to go out and save lives on an ambulance? No problem, sign here and we will train you! It has to be mentioned however, that some people like to go through life doing the bare minimum of anything, so it is only logical that EMS is the ideal stomping ground for a few of those who want all the glory, but without all that "book lurrnin" stuff
Conversely, the point that not everyone has time to do a medic course, or can afford the tuition is a fair and valid one, and I would never suggest otherwise. What I would say, is that those same people should not be facilitated to join EMS in the first place, the same as they would not be permitted to practice nursing or medicine on an ad-hoc basis. In other words; education first, practice second. This is the model that every other healthcare profession takes, so why should EMS be so different?
I agree with those who state that the whole system needs to be rebuilt from the ground up. EMS stands alone as the only healthcare "profession" (loose use of the word) to have such fragmented, watered-down requirements to practice at this point in time.