University degrees are supposed to mean something.
They are a distillation & condensation of other people's experience. Perhaps many lifetimes of experience, condensed into a few years of learning.
Thus a graduate with a degree is supposed to be already in possession of knowledge that would otherwise take perhaps a decade or two to learn the hard way.
Mine Host is somewhat forgiving of mistakes by the low-paid, particularly if they are his employees.
However he is ruthlessly demanding of those who are degree-qualified.
Especially those who hang out a shingle & charge multi-hundreds of dollars per hour for their expertise.
They are granted little latitude for error. Mine Host is remarkably unforgiving of mistakes made by degree qualified people.
Their degree is supposed to say they are bristling with knowledge & expertise in a certain field. They are supposed to be expert.