Contrary to what socialists and communists try to indoctrinate, it is very difficult to be a successful capitalist and not be a basically honest person. Dishonest people do not succeed in a true capitalist system.

Now, if you have a "crony capitalist" system that is actually a fascist system that is paraded as a capitalist system, then it is every easy for dishonest people to succeed. They just have to get in bed with the government bureaucrats who hand out the fat government contracts (and be sure to kick back some of that taxpayer money to the corrupt politicians who made it all possible).