I see this in my own field as patent trolls.
Not ordinary people, and relatively rare per capita; but the population is big enough to have many parasites; or a very proficient few based on what they practice.
My life would be easier professionally if the top ten patent trolls went out of business nationally
College computer programming programs normally do not train people to immediately work, unless the students spend thousands of hours coding on their own. Most comp sci students avoid this.
So, when a new dev graduates and they did not do that extra work, then the first year of paid work is them putting in those hours while being paid rather than doing it for free