The accusation of “cronyism” can be applied to just about anything – not just capitalism. In the 20th century, for example, you certainly had crony communism in virtually every communist or socialist state. You also have cronyism in universities (especially in left-wing departments) councils, political parties, anti-fascist groups and so on.
The same is true of that broader term which has become so popular with verbatim Chomskyans and followers of Naomi Klein — ‘corporatism’. In this case you have fascist corporatism, Christian corporatism, Communitarian corporatism, kinship corporatism, and even “progressive” and socialist corporatism.