Least Fit Monkey theory reminds me of a rule of the corporate world - that people get promoted to their highest level of incompetence.
They give you an easy job, you can handle it, you get promoted
to a slightly harder job, you can handle it, you get promoted
to a slightly harder job, you can handle it, you get promoted
to a slightly harder job, you can handle it, you get promoted etc etc etc
eventually, you reach a level where you're struggling
because you don't excel at that job, you stop getting promoted and land there forever
Therefore, corporations are loaded up with people that suck ass at their jobs.