Capitalism is the best economic system, but without a moral code setting it can go astray

Andrew Klavan makes a good point here.

Capitalism is the best economic system, but without a moral code setting the rules of the game, it can go astray.

That's why lawless anarchism will never produce anything but pure chaos and degeneracy.

Societies need rules and guidelines otherwise the freaks win.

Things like prostitution are not "capitalism" per se though. People can earn a living in all sorts of ways in either a capitalist or socialist system. That kind of activity could be socialized by the state and still allowed to operate (like the state-run military brothels in the socialist Third Reich), whereas it could be banned in a mostly market setting. Earning a living doing something is not capitalism in itself, as all professions can be replicated in a socialist system.