But at the end of the day values of money are made up bullshit that attempt to assign a number to scarcity. If we make a world where computers can cheaply (energy/material wise) make all the items humanity needs, that future world is one that is a lot better off then the one we currently exist in. At least if we consider human needs being met valuable.
If science fiction tropes have any connection to reality, us humans may sit around all day in hedonistic gay space communism playing games while robotic/AI systems produce and trade needed resources and energy between each other producing 'value' while humanity itself is just a value sink.
In this scenario some people will still be rich and powerful while the rest will be poor and powerless. Only now the elites don’t really need the poor, right? So what’s going to happen when the next Hitler decides to shrink the world population using robot armies?