> Or you have a leader above who has no idea and goes with the quickest/cheapest option.

This leader is not going with the quickest or cheapest option. Doing so would probably be laudable. They are going with the claims made by someone that a certain way is going to be quicker or cheaper. It doesn't matter if it actually is, or ends up being, quicker or cheaper. One plan is classified as meeting the requirements while another plan is classified as being cheaper, the cheaper one will be chosen even though it doesn't meet the requirements.