So, accumulating ever more amounts of personal wealth is fine as long as you aren't the the top 1%, er 0.1%, er 0.01%, er, as long as you have less than someone you know.
There has to be a line somewhere. I don't claim to be the person qualified to draw it, but society has to be willing to define it and say "Wealth accumulation on this side of the line is OVERALL healthy for promoting fair and evenly distributed prosperity, and wealth accumulation on the other side is OVERALL destructive and benefits only a small few."