It's funny how all the responses here centers on personal achievements. I'd ask a question. Who do we consider rich? what does a person need to do in our lives before we accept they're rich? Giving! is the only factor used to measure riches in the society. If you have all the money in world, cars, buildings and financial freedoms without having humans who benefit from the wealth through giving and charity. People won't be satisfied with the fact that you're rich. A person that gives to people is a rich person. Because it signifies they have enough for themselves, that they can reach out to other people. Not just families, but strangers. Helping startups grow. Sponsoring people who do things we want to do. These are the factors I'd consider as being rich. Not just acquiring personal needs. If we don't hand things over to others it means we're not satisfied with what we've gotten. Meaning that we ain't rich.
Richness in what sense? We can think about being rich financially, healthy, belonging to a wide social circle of friends, by being a popular individual, by being successful on the professional field chosen to work on, by having the love of the woman of your dreams or just by being in peace with yourself and with the philosophy of life you chose for yourself. We can talk about richness literally or metaphorically. There isn't a right answer for this question, as it will be always subjective depending the aspect we are talking for and the people you are asking to.
In my perspective, I consider all the categories mentioned above as meanings of being a rich individual.
It's indeed about health too, because being healthy contributes to a better life. When one possesses what the society values, they'll definitely be called rich. Do you think the rich folk still think of other rich people as rich? wouldn't they have other things that'll be more valuable than money. Most rich men today, sponsor war and purchase weapons. That's what seems to them as being rich. Owning war tankers, bombs etc. You'd see it's about personal perspective. Others who depend in the spiritual ways can see a possessor of a rare talisman as rich too. So, it's not mainly about the money like you said. Freedom and happiness is also factors of wealth in the life of many business men. Stuffs like cars and house, we easily get tired of them. That's why I think we all should own our different ways of seeing riches. Like myself, giving is my first and primary factor of calling a person rich. Regardless of their social standards, houses or whatever belongings they have.