Lol if you're aiming 90+ you're no smart kid either. 90+ isn't exactly hard to get. I could cruise through Year 12 doing minimal work, and still probably get 95. Get off your high horse.
Merely passing every Uni subject doesn't mean shit. if you're averaging 51% in Uni, you aren't getting a job, simple as that. You need at least a Credit average to get a look in for most jobs in ANY profession. Just as much of a waste as no ATAR in Year 12.
I find this part rather hard to believe. Not the 300k, just iBankers having 0 degrees. Dunno how you'd learn financial modelling etc without one.