Have you encounter such people in life in which no matter of what good you have done to them, they will never appreciate such and show gratitude, helping them even will be seen as your own responsibility to do so, while they were there no helping other from their own little capacity, this is about pride to me, i see no reason for someone to help you out with something and then you refused to show your gratitude, will you be able to receive more for the next time?
It is a matter of fact one will always find people who are ungrateful to others, not matter on the context where one find them. It is kind of a problem about people bit appreciating the value of others and how they help to enrich the lives and the work as part of society or even as part of a company within workplace.
It is a typical scenario one can find, the ungrateful boss or coworker who mistreats one, even though we do our job and try our best to comply with the standards which are asked from us..even though one does all exactly as asked, one gets scolded and belittled anyways.
It is a very toxic behavior, when ungratefulness meets a position of power and responsability ...