Workers are paid fairly equally under capitalsism regardless for each job. There is a "standard rate". The incentives that could exist from the perspective of the worker would remain the same (bonus checks etc) no matter the system (minus a moneyless one).
Also remember is was the USSR who made it to space before any other country. Almost as if hard work is stimulated in many ways - and humans are not only interested in money.
Damnnnn that's a good one. Would be so funny if trump loving conspiracy theorists suddenly went vegan