I would consider a significant portion of existing managers to be exceptionally ineffective. Rather, if there were a majority that were effective, we'd be approaching Singularity significantly faster. The management case specified that the employee's heart was in the in the right place, so I must assume they aren't slacking off at the very least.

Suicidal tendencies, who would be happier with who, plenty of fish in the sea, and so on are examples of why dating is so ridiculously complicated. My own personal conclusion is that I am better off single for reasons you've described well thus far. I haven't done all the math personally, but it is my understanding that society naturally evolves the most stables practices; things do not become taboo for no reason, nor are taboo practices outright forbidden. The few that practice the taboo tend to reinforce the wisdom behind tabooing the practice. It seems like a significantly Bayesian-like process to me.