"What people say they will do when there's no cost associated with an action and what people will actually do once a cost IS associated with the same action are

"What people say they will do when there's no cost associated with an action and what people will actually do once a cost IS associated with the same action are frequently 2 different things." This statement makes it sound like you think that Google employees are unable to attach a cost to leaving the company until they actually commit the act. Am I misunderstanding? Because that's obviously not true.