Also do not forget the fact it says to desire the gifts (hence the s) of the Spirit. Meaning do not limit yourself to one. I believe that we should not limit ourselves to just one category of a gifting. Kind of how you said it but in a different way I guess. Basically a prophet can heal and interpret tongues and speaks words of wisdom and discern the spirit. Maybe not all at once but at certain times. I do agree that we were created for certain purposes but at the same time we were created in their image. Meaning we can do what Jesus did and more, which then goes to the point of not limiting ourselves to even Jesus' doings, which were all the fruits of the spirit and all the gifts and everything. But it all comes down to love :D