If you have enough money for your home, your car, your food, your kids (if you want kids), enough to take a couple of nice vacations a year and wear nice clothes- that's all you really need.
But, if you think that you can only be happy as a billionaire then "business" is not the way to go. Every person in the US who thinks they want to be rich decides to go into "business". You know what "business" means? Nothing. It means nothing. Every dang thing in the world is a "business". If you want to be filthy stinking screw the little guy rich then you want to be as stock broker. Remember a few years ago when those guys on Wall Street screwed a whole bunch of people out of their houses and retirement accounts and still got $10,000,000 bonuses? Those were stockbrokers. I'd say there is pretty much no chance of you getting into heaven or having a favorable next life if you go into that field since they eat their own children for a few bucks- but if rich is all you want, then stock broker is the way to do ti.