Did you intend to include a "not" as in "not for the credentials"? I would think you do a tough EE or Physics (or Classics) because you want to learn the stuff.
That seemed to be the case when I was at MIT, though that was a generation ago. Everybody seemed into their work, despite claiming to be upset by the course load. Complaining about it (IHTFP) seemed to be more of a ritual or social activity rather than earnest protest.