"... like moths to a flame..."
I believe this to be the primary problem with such institutions, as those seeking power and wealth are shown to be expert at infiltrating even organizations originally intended for good works to suborn them for their private aggrandizement.
The state itself is the primary mechanism that perpetuates slavery, through taxation, and worse, incessantly broadening the laws creating criminals that can be held captive and forced to work as slaves.
This is the draw for psychopaths that want to abuse that power themselves. Their success at it is reflected in geopolitics today.