The definition of success as an entrepreneur is to achieve complete personal financial freedom, whilst making a positive impact on the world around you. Its no good making a difference and not making a profit. Its also no good making a profit in a manner that hurts other people.
As a person, success is being 70 years old and surrounded by loved ones.
As an entrepreneur, success is making enough money not to worry about money.
Hopefully you can achieve both, but if you have to choose, go with the former.
A pile of cash won’t compensate for being alone.