If you believe that wealth is speech, we will disagree on this matter fundamentally. I have tried to point out why this is not so, and will leave it at that for now.
What owes to be and what we would like something to be are two different things. Wealth and reputation go hand in hand. Monetary rewards are in a way a form of societal value. No matter how we like to romanticize the concept if "equality" it is what it is.
I also point out that people do sacrifice their lives to save others. This is not done for social capital, but out of love. You seem to be skeptical that people do things for reasons other than self interest.
Instinct. For example someone will go and save someone from drowning if they know good swimming. Even a mother seeing her child being in a burning building won't be able to go in the flames if she feels that is futile. The "hero" that might die in these situations doesn't evaluate the situation properly.
I know you are not convinced by my words, and have not been convinced before now, but I think you might want to research animals that rescue people, and other animals.
Animals work on the concept of "reciprocal altruism". Google the term.
Some people are nice. I hope you are never in need of kindness, but that, if you ever are, you find out this is true.
We are nice given the right circumstances.
Thank you for your thoughtful comment once again.