What is Our Drive?

If what Freud says is true, man is driven by animalistic urges rather than intellectual ones. Are we as a species driven only by the incentive of sex? In today's world, is money the new sex? Are we all so busy chasing the green as our ultimate goal that it affects our every action? I sure would like to think that we are a bit more evolved than this but honestly, as we know, and will come to realize even more clearly once we graduate, is that money makes the world go round. Why shouldn't we just accept that and go with it? One person isn't going to change that, no matter how unfair it may seem. That may seem materialistic, to do things based on money and not love or personal fulfillment, but it is also realistic.