Issues of taste and aesthetics are not normal fodder for engineers ... but when you make something sufficiently complex, you are by necessity operating on the frontier, far away from the well-trod paths of tradition and precedent.
Out here, survival is not so much a matter of rules, but a matter of gut instinct: Of taste. Of elegance. Of aesthetics and style.
Here, where the consequences of your decisions can be both impenetrable and dire: vigorous debate and discussion are essential; ego and stubbornness both fatal disorders, and a shared sense of taste an incredible boon.
This is where leadership at its' most refined can shine; The creation of a group aesthetic; A culture and identity that is oriented around matters of taste.