Comment by iamrobschiavone

A common practice is to keep developers unaware of the real objective of their work (like Uber, in another comment on HN, https://news.ycombinator.com/item?id=13786384):

- developer A is tasked to create the prompt to ask for username and password of the email account

- developer B is tasked to call some API to upload contacts from email account

- developer C is tasked to bind two functionalities.

Now replace developers with teams and you see how simple is for the average developer to underestimate the scope and the ethical bounds of a given task.