I do not believe that for one minute. For most of my life I was completely selfless. Why?Because that is what I was taught - to serve others. Only thing that happened is that other people benefited, and I starved.
So fuck that. I now write what I think, and I earn that way, and it has very little to do with serving others. Finally I'm earning.
And, yes, free time, enough money, and I am already retired works just fine for me. I absolutely hated work.