That isn't a very empathetic perspective. Consider perhaps that it has nothing to do with ego and nothing to do with thinking that college has nothing to teach you. Instead, it might be the case that these individuals think either or both of:

1) Yes, college could teach me a lot, but my resources (time and prime years) are finite, and I'm willing to make a tradeoff that forgoes some valuable elements in favor of an arrangement that helps me achieve my personal goals

2) College is not an option for me because it's incompatible with the reward centers in my brain and things like entrance exams, prerequisites, and the rigor and structure of academia are environments in which I flounder, not thrive.

There are many experiences in life that have value, but it is up to each individual to decide for themselves what they should pack into a few short years. It could just as easily be argued that the egoism is on the other side of the table for being so dismissive of alternative paths to success.