Why do I feel like we put more effort into vetting/interviewing employees than political candidates in the US? Say we had to choose candidates like we choose e

Why do I feel like we put more effort into vetting/interviewing employees than political candidates in the US? Say we had to choose candidates like we choose employees, we should have: - individual tests for the employee (actual aptitude in things like strategy, diplomacy, math & statistics, science) - behavioral tests (how likely to lie/take risks) - etc. Instead it all seems to boil down to statistics-backed popularity contests half-a-step up from elementary school class elections.