True, just as the job satisfaction ratings vary greatly between types of engineering. On average they are both high on the chart so I certainly wouldn't consider engineers to be miserable just as I wouldn't consider doctors to be miserable.
I think both schools just take a different approach and rightfully so. It's very easy to get into engineering school (maybe not a top institution but there are plenty of ABET accredited schools that accept students with 2.5gpa all day). There is no shadowing, hours in the field, essays, and you certainly don't have to spend $3000 applying to 30 schools and flying out for interviews. Even when applying to a PhD program, the process is not as over the top as medical school. Graduating an engineer program is a completely different story. Our dean said our class had a 55% drop out rate (most just switched majors). Most of the weeding out is done by the curriculum. From my experience on this site, it seems medical school is the opposite. They are extremely selective, but once you're in, they do everything to help you graduate and keep their rates 95%+. I guess a medical school that was run like an engineer school would look a lot like the Caribbean schools 🙂