No, I think one biological imperative is similar to another biological imperative. The internal drives we instinctually have that are there to ensure survival are very much alike. I think how one responds to any biological imperative whether the need to eat or the need to have sexual commerce depends upon one's willingness to control one's desires and whether one honestly sees any reason to control them. As human beings and not purely instinctual animals, we are able to consider the consequences of our actions and decide on what courses of actions we will take and refuse to take based upon multiple criterion and not just our instinctual desires. if one decides that one's well being would not be best served by giving in to one's instinctual desire then one has the ability to refrain from giving in. A person that does not consider their instinctual desire to be in conflict with one's well being would not consider refraining. A person that decides that one's well being is not as important to one as one's instinctual desire will not refrain. There are many reasons to do something or to refrain from doing something but having an overwhelming desire to do that thing does not in itself preclude one from refraining. Therefore if I have an overwhelming desire to eat chocolate candy( I don't have such a feeling toward butterscotch btw), I have the choice of giving in to that desire or not. If I give in it will be because I honestly see no harm in satisfying the desire or I prefer satisfying my desire, at least in that moment, to my well being. If I refrain it will be because I believe that giving in to my desire will be detrimental to my well being in some way.