I think it’s a miracle that we found a way to get humans to cooperate whatsoever. It’s fragile but by assuming everyone is fundamentally self-interested then it just about works.
Other systems assume a higher degree of altruism than humans actually have. Paradoxically this leads to more corruption in those systems, like endemic corruption in communist countries once some people start to play the system.
Capitalism facilitates cooperation but with an underlying game theory assumption of self interest holding it all together.
Someone called Keef D wrote an autobiography where he confessed to it and claimed Diddy offered him $1 million to kill Tupac via a middle man. He is currently in police custody awaiting trial for his role in the hit.