What major should I peruse to become rich later in life?

You live in the US? Poly sci, business, pharmacy stuff (can't think of exactly which one I'm thinking of lol)...become a lobbyist, a pharmaceutical sales rep, go into the gov't like congress, work for a major bank or insurance company. If you don't have a conscience these careers will suit you well, all making well over 100k/year and that's an understatement.