Billionaire can also be framed as succeeding at creating a power differential at scale. The trick is that you can't achieve scale without using power differentials, and iphones are the fruit of scale. Idea: what you kind of want is for the power difference to decay at scale, so that way you don't have amazon workers pissing in water bottles. Remember: "Sufficiently Powerful Optimization Of Any Known Target Destroys A…
Startups like Airbnb and Lyft likewise have built amazing things, and would easily make their founders 100' millionaires, but there is a point where to reach a certain level you need to leverage some flawed, unjust legal system at scale (stupid regulations around housing/hospitality/and taxis, in these examples).
None of these founders created these legal systems, but their rapid success and scale I can't see happening without those dumb legal environments they found when they started.
Now, maybe the best method to fix unjust laws is exactly this: when you see a stupid legal system, found a company to exploit it, become a billionaire and then finally society will take notice that the legal system is stupid and will fix it.
So I could see an argument that maybe not only should we not penalize billionaires who built their wealth from scratch, but we should thank them, like we thank white-hats, for identifying inequitable laws that they were able to leverage at scale.