Failed experiments

When the Soviet Union went into liquidation, so to speak, the Socialists all said that they had just "done it wrong". Socialism could work. The Chinese experiment with both a "free market" (of sorts) and Socialism still had the failing that such systems encouraged corruption. When a system is disrupting the natural desires of people for wealth and control over their lives, there are people within such systems who have opportunities that are presented. Those opportunities usually mean corrupt practices that include bribery, taking money, and setting up deals that benefit themselves and their friends. They will also take shortcuts, as convenience, such as what happened with manufacturers in China, where they used lead paint and other unsafe materials.