I don't think that they are mutually exclusive, but the priority needs to be with feeding the soul rather than the ego. When we are concentrating on bolstering our personality, we are creating more layers of protection to shield us from the outside world, which can be sometimes disappointing and very hurtful. In short, we are creating an image - often also with the aim to compensate for other parts of ourselves that are less integrated.
When we focus on feeding our soul we look for the things in our lives that give us more aliveness, more vitality and more connection. We are being creative and look to express who we are rather than whom we think we should be.
Maybe next time you are facing a decision, ask yourself: Is this feeding my soul or is this feeding my personality?