Let's face it, we work in the dirt. Our clients work in the A/C wearing a tie with their own personal office and many times with a personal assistant. We are paid for our labor and they are paid for their brains. Until we are on the same level as them, they will not think of us as equals.
On the other hand, we can name the price for our skills. 2 BMW's in the driveway = 20% price bump.