So, funny story…

The revelation that towards the end of his life, George Orwell had collaborated with the secret British government propaganda agency, the Information Research Department (IRD), provided conclusive proof as far as his political critics were concerned that he and his politics had always been flawed; that he had never been a reliable adherent of the socialist cause and that he had certainly abandoned that cause in his last years.

Also, Orwell was literally a cop serving the British occupation of Myanmar.

If he was familiar with corrupt politicians, theiving, and traitors, it was through very first hand experience.