"I think it may be a while before parents who "want to leave something better for their kids" abandon that mindset."
We will not need them to abandon a mindset. It will be abandoned on to them :-) What I mean is that it is going to take work, in the form of service to others, to maintain the value of any legacy. I personally will be ruthless in separating parasites from any value that might be in their so-called "wealth".
I doubt that robots, or AI, will ever duplicate "empathy", so I suspect that is one avenue of possible "service" to others. Some forms of creativity will also probably not be duplicated by AI (although I am less sure about that).
Yes, steemit has freed me from a "traditional" job - but I sure have to put in long hours :-)