I worked on a tool at Amazon once that incorrectly calculated royalties, not because Amazon was greedily trying to steal from publishers, but just because of general incompetence (or, lack of sufficient competence maybe). Basically, of the people who wrote the tool, tested the tool, and used the tool, none of them knew exactly how royalties should be calculated and none of them could tell whether or not they were bei…
"Never assume malice for that which can be better explained by incompetence"
For example, if you follow this line of thought you'd never investigate murderous cops simply because their cameras where turned off due to their incompetence rather than purposeful, malicious action.