The way to make lots of money in this world is not by working a regular job, but rather hustling. The only regular job that would make you a lot of money would be either being president of a profitable large University, in which the presidents get paid hundreds of thousands to more than a million dollars a year to do God knows what, or being a CEO of a public company.
You can also trade stocks or cryptocurrencies, but the most common way of striking it rich is to start your own profitable business with room for expansion. Other than that, illegal activities will also net you more money than normal. It is all supply and demand. For illegal goods, the supply is usually lower because the average Joes would rarely involve themselves in such things.