In my time in consulting, I was exposed to people in every corporate function possible, and had the chance to see what their jobs were like. I worked for tech companies, PE firms, corporations, and government-regulated entities. I spent 6 months in growth equity and got to learn what the buy-side is like.
If I had known then what I know now, then I would have told my 21 year old self to go work at FB or Amazon or some small startup.
But the value proposition for the firm I went to was unequivocal. We will pay you a lot. The opportunities you have when you leave will pay you even more. You'll get to work with other extremely smart people. You will see a ton of industries. You will be able to go to whatever b-school you want when you're ready to apply. And if you get good at your job after a couple years, your hours will go down substantially.