Corruption you can find in every nations of the world. There are corrupt people every where in the world even among the elite and politicians. So since we have corrupt people all over the world, definitely we would have corrupt nations because these same people occupy sensitive and strategic positions and would always want to take advantage of that due to the corrupt tendencies inherent in them. You can also find corruption among the average individuals and that is why we see all sort of scam being perpetrated by younger generations. Trust you understand my point.