Owning a business comes with many benefits such as financial Benefits cos your income won't be like a regular monthly salary, the more successful your business the more you earn.
You will have money coming in every day that helps you cover day-to-day expenses instead of waiting for a monthly salary before you can cover those expenses.
What you said only applies to those who have a business that is running automatically and stably providing profits, but for businesses that are not running well, your sentence does not apply.
In the real world, not everyone is able to run their business, because not everyone is chosen to be an entrepreneur, many are only suited to being an employee, even though they have tried, but their career is no more than just a worker.