The anarcho-capitalist incentive method is a bypass of societal payment systems. It allows bitcoin billionaires to make a fortune with crime and speculation on crime, or alternatively speculation on speculation on crime, without ever being traced (except maybe by the NSA), nor taxed.
Let me explain this reasoning in more detail, so you can let me know if any of it is wrong. All of the societally harmless uses of Bitcoin and Ethereum can be implemented in a safer manner using TALER, without bypassing the tax system which is, as flawed as it may be, the only instrument society has to redistribute from the wealthy to the poor. Without such a redistribution, the capitalist architecture collapses and humanity’s ability to exist on the planet dies with it. If everyone just cares about themselves, a future comes when the rich get chased by pitchforks while global challenges such as pollution and climate change would not be tackled by anyone.