> That capitalism logically implies that the rich become richer? I don't think this is necessarily the case,
It is necessarily the case. Capitalism is characterized by private ownership of capital, which among other things means that it's possible to accrue it without limit. So the loop whereby the rich accumulate capital, which then allows them to extract even more value produced by workers (i.e. people who actually do useful things with said capital), is an inherent part of capitalism.
You can make it more mellow by heavily taxing the capitalists and using that money to raise the standard of living for everyone else, which is basically what Western social democracy is. But it doesn't eliminate the loop, and thus rich continue getting richer. And more powerful, too, which they use to dial said taxation back eventually.
It is necessarily the case. Capitalism is characterized by private ownership of capital, which among other things means that it's possible to accrue it without limit. So the loop whereby the rich accumulate capital, which then allows them to extract even more value produced by workers (i.e. people who actually do useful things with said capital), is an inherent part of capitalism.
You can make it more mellow by heavily taxing the capitalists and using that money to raise the standard of living for everyone else, which is basically what Western social democracy is. But it doesn't eliminate the loop, and thus rich continue getting richer. And more powerful, too, which they use to dial said taxation back eventually.