A lot of the original libertarians were...socialists. The term today has been rebranded to mean strictly anarcho-capitalists but it originally included anarcho-communists and libertarian socialists.
A not-anti-capitalist socialist is not a socialist. TLDR: Capitalism is when production is determined by people holding capital. Socialism is when production is determined by the members of society. So the question being, should an economy be democratic or run by the rich.So long as socialists workers work democratically, there is no hypocrisy in earning money.