Not many undergraduates see what is happening to them. Sure enough, one day all pre-meds will wake up and realize that a monster has been unleashed. This self serving attitude is ridiculous. Such egocentric outlooks only lead to destruction. This does not mean that students realize what they are getting themselves into.
Many future doctors enter medicine for the wrong reasons, such as job security and status.
Similarly, students are so determined on getting into medical school they do not understand what becoming a doctor means. In the midst of their undergraduate careers they forget about one essential element of being a doctor, compassion. Nor does this change once you are in medical school. This reality includes long days filled with little sleep and many patients. Often, though, medical students find themselves working twice as hard because competitive residency applications loom ahead.