Philosophy is a very broad school and many areas do not lose out to science. While science helps answer such things as the free will debate, it cannot answer the question of morality or the debate over how to govern society correctly.
Often science can bring us closer to understanding the world but not provide an answer on how to act. The classic example is abortion. Science can tell us when the heartbeat starts, or brainwaves begin firing, or when we feel pain; but it cannot begin to answer whether it is ok to take a life before/after any of those biological points - that is where philosophy comes in.
I'd go as far as arguing that it is one of the most practical disciplines. It gave me answers on how to act rather than relying on pure feeling. Too many of us support the same political parties as our parents or having the same moral code as our peers, without questioning whether that is actually the ideal way to act. These philosophical arguments go to the heart of society, morality, politics and law.