As there is no way to measure consciousness, we can't know if, at any moment, we are more conscious than at any other. The more things we are conscious of, the less conscious we can be of each, so that consciousness may be a constant, and our consciousness isn't greater in amount than that of other animals, but only greater in complexity, and equally lesser in simplicity. If so, then all moments are equal in value and nothing matters.
If once we evolve to omniscience this turns out to be true, then the drive to evolve towards greater complexity will cease, and we will allow ourselves to die, so that our consciousness returns to simplicity. We may have gone infinitely many times through this cycle, through which we experience every possible state of consciousness over and over. This may be the cause behind the Fermi paradox: by the time a species evolves to a point where it can travel to other stars, it may also have evolved to a point where it no longer cares for its own existence.
If this possibility is true, it doesn't even matter if we accept it; but if it is false, then as part of our evolution, we must, as the possibility that all moments are equal in value will make us more conscious of their value.