Corruption and Cruelty are human foibles and they have no relationship to race or colour.
Several years ago, whist travelling through Bulgaria I was held up at gun-point by two uniformed police officers. They took possession of my Wallet but they changed their minds when they came accross my International Drivers Licence which I told them was my Diplomatic Identification
I had to bribe the Spanish Police in order to cross the border into Gibraltar and I had to bribe the Customs Officer at the Tijuana border before I could cross over into Southern California.
And I could do very little business without the assistance of a good bribe whilst in India.
During the Apartheid days I could usually bribe the Traffic Officer who trapped me for speeding or for parking improperly. And a substantial bribe invariably enabled me to acquire a Trader's Licence even when it was contravening the Group Areas Act !
There is nothing like a full belly to prevent a fellow from becoming dishonest.
Race has nothing to do with it !