They try to sell it because they believe it themselves.
This is almost worse than them lying, insofar as incompetence can be more damaging than selfishness: you can negotiate with a selfish person to get something for giving them what they want. You can't get anything out of someone who can't deliver.
This is almost worse than them lying, insofar as incompetence can be more damaging than selfishness: you can negotiate with a selfish person to get something for giving them what they want. You can't get anything out of someone who can't deliver.