I look down on people who participate in greek life like fraternities while in college
What is your reason for looking down on them?
They're all lame and dumb, and after college they'll only end up as investment bankers
Even though you don't find what they do attractive, you shouldn't look down on them. What they do isn't important to your life.
I think of it as easy to stay in a frat. I'm smarter than them because I know what will be in store for them later.
It is just unfair to judge people so quickly in this way. There are people who prefer all types of different jobs and it is not fair to judge them based off of this preference.