I personally think that living on a salary is purely a matter of mathematics, you can calculate the maximum amount you can earn in a year and plan accordingly. Simply, without a business the only way to become wealthy is by strategically managing income, cutting unnecessary expenses and investing wisely. A salary alone has limits and surprises when you go through financial crisis, but investments in assets especially crypto, can grow wealth over time. 

However, for me owning a business isn’t the only path to financial success, but what you learn from the financial discipline and smart investing are more important . The solution of it all is ensuring that part of your income works for you rather than just being spent.