It is easy to get rich, as long as you have the moral compass of a cactus.

First I'd code some malware that specifically targets old people to try to scam them out of money. With that money I'd short out companies on the brink of going bankrupt and help by doing things that cost them money but aren't technically illegal. With that money I'd start my own business selling crap bought from overseas, with students I can underpay, so I exploit both my customers and my workforce. Then with that money I'd bribe politicians to give me tax breaks.

There, now I am a multi millionaire.