There are a zillion reasons to be in therapy, and it is an investment in yourself if it works for you. There's something called an abundance mentality v scarcity mentality. You're looking through scarcity eyes- like there aren't enough resources to go around, and your time takes away from other's time. In an abundance view, there is plenty of time for you and plenty of time for others too. I lean more to therapy being a somewhat old fashioned and quaint art that is dying slowly like print magazines and books you can hold in your hand. Your participation in it and support of it is good for the therapist, good for you, and good for society.