I think of it this way: if you are one of the super rich, then you have a special personality which comes with corruption and other weird personality things. I am rather a normal person with much less wealth, but good moral values.
If you have a corruptible personality, and live in a society that incentivizes corruption (most if not all do), then you have a better chance of getting super rich. It doesn't mean anyone who is super rich must be corrupt.