Every system decays into corruption (any kind). It's just a definition of humanity and the sooner you get it the faster you'll extract happiness from all this chaos.
Corruption comes by parasites and perversion. In humanity’s case a power (and off hand willingness) to harm greater than accountability.
Comfort, convenience, complicity fine, yet draw the line at collusion or negligence.
> parasites
I sense contradiction. You literally used an example of an evolutionary strategy found in nature (parasitism) to somehow support your theory that nature is not corrupt.
Population density breeds disease and parasites (of the biological kind.)
Population out of balance with resources is a systemic corruption that living strategies resolve dynamically through time.