OT: Career and major advice for working class kid headed to UM (possibly Ross)?

Nephew on my wife's side is in a pretty tough area and was raised by my single sister in law. Good kid. He just got into LSA, with I guess a pending decision from Ross. He will be the first in his family to attend college. Wife and I have helped him along the way and it's awesome to witness. He honestly doesn't really have a passion. No interest in engineering or CS. As blunt as it may sound, he’d like to make a lot of money as soon as possible. He hates being poor. His words. He works hard but it seems he’ll be in the bottom quartile maybe even decile of his UM class based on prior class profiles, so I'm trying to be mindful of what’s realistic to achieve his goals.
 

From the little I know, the Ross students who clean up on Wall Street are extremely aggressive and have perfect grades (and often family connections). And I personally don’t understand any of the differences and levels of competitiveness between investment banking, sales and trading, private equity, venture capital and everything in between. Would you encourage a working class kid like this to pursue finance—any specific path?—or has tech sort of overtaken finance? I wouldn’t have any idea what’s lucrative for a kid tech-wise if they’re not a CS or engineering major. And Wall Street and tech are rapidly evolving, with lots of job losses, so maybe they aren’t even the ticket they once were? Any insights appreciated.