This type of ethic is also called duty-base ethic, it focuses on the rules or duties and policies, where a person who follows the rules and does his duty in the correct manner. I think this kind of ethic concepts are mostly appreciated in the developed and high economical countries. For example, in Japan you will always find the citizens are following the rules more than anything else. I think deontological ethic is usually benefited from when it is being followed correctly. At the same time, there might be some rules are being given by the government and these rules could be affecting people negatively which can go to the degree of unmoral absolutism. Though they have to keep quiet and follow it which may create some kind of insincerity or loyalty among the community.
One example of this type of issue is the account payable clerk
Consider an accounts payable clerk. This person is responsible for reviewing invoices and expense reports, ensuring that they conform to policy and then issuing prompt payment. If company policy required original receipts to justify the items on the expense report, and the employee submitted photocopies only, a clerk with a duty-based ethic may reject the report and require the originals even though other clerks may simply process the report without question. The clerk acts in this manner because he believes he has a duty to follow the full and literal policy that the employer had imposed, irrespective of whether the need for originals instead of copies made any difference. From here we can see that sometimes by following the duty-base ethic we could leave the logic and follow only what is given even if it seems not logic.
I think deontological ethics or duty-base ethic do work in some conditions and in others they don’t. it means we need to balance it buy ourselves in order to make it perfect.