Earlier quoted context omitted.
Because there is no truth in "trivial" and "obvious", there is only value, as in "guilty" and "good".
There is also no objective truth in medicine. But we still let doctors decide what procedures to do, not random people with 'common sense'.
We let doctors do whatever they suggest a lot, we also have the right to refuse medical help if deemed mentally capable. Random people with common sense decide for theirselves.