The median range is somewhere around 40%, that is the max is 40% or so above the min. That’s based on my analysis of over 5 million job postings with salary ranges in them. A subset here: https://docs.google.com/spreadsheets/d/1j0Xap2Qt1bzY-8OA1Gqk.... Which is around what most salary ranges for a specific job grade have [1]
That’s my data, not my gut. So yes, there are absurd ones, but it’s not the vast majority by far. So don’t throw the baby out with the bath water based on some outliers