[enkid]

I think the problem is that people will optimize for a task they are incentivized for. Many people are just incentivized to appear competent enough to get a promotion or some sort of reward: votes for a politician, sales for a salesperson, a promotion for a manager. This means they don't actually have to be competent, they just have to have the appearance of competence to who ever is doling out those awards. These also happen to be the most visible professions. These things combined create the impression that no one knows what they are doing, and everyone is faking it.