Another of my favorite examples is companies going "everyone needs cyber security training" and applying a single test to their entire global staff with no "test out" option. I watched a former employer with a few hundred thousand employees in the US alone mandate a multi-hour course on the most basic things, which could have been negated with some short knowledge surveys.

The same employer also mandated a multi-hour ethics guidelines course yearly that was 90% oriented towards corporate salespeople, and once demanded everyone take what I believe was a 16 hour training set on their particular cloud computing offerings. That one just have cost them millions in wasted hours.