These are all morally worthy things, but aren't they just fundamental attributes of being an upstanding member of Humanity? They don't define us. If I hold doors open for folks behind me, or relinquish my seat on the bus to an elderly person, I'm being a decent human being... but that doesn't define me.
Instead we might ask, "What defines you, Dr. Fleming"? "Oh, I discovered penicillin". "What defines you, Dr. Salk?" "I discovered the polio vaccine". "How about you, Dr. Jarvik?" "I invented the artificial heart".
But I'm not a medical man. In my field, one might ask, "What defines you, Prof. Prandtl?" "I discovered the boundary layer concept. Was the first to propose flow control. Developed lifting-line theory. And so on". "What defines you, Prof. Liepmann?" I wrote the seminal book on compressible flow. And supervised dozens of PhD students, who have been preeminent in their field".
So, what "defines one" is epochally-significant contributes to one's field. If one has made none such, then one struggles in assessing, as to what defines one. My ambition at one point was to enter such pantheon. I did not. I'm a very ordinary, quotidian and generic engineer. Degrees, yes. Publications, sure. But contribution? Minimal. In a roundabout way, my interest in early retirement is precisely because I was unable to attain lofty professional heights that would define me. So, might as well stop trying to play the game.