Actually some clients do realize that skill costs $$$. I've had two clients come back to me after initially hiring contractors with below-sea-level fees. Since they have a tight deadline, I asked them to pay twice my rate (because its the weekend and I'm on vacation) and they happily did after realizing the folly of their ways.
Bottom line, ask for the right rate you deserve if you have skills. People will pay the right price if no one else can perform at the level you do. Experts command expert rates and if the client does not want to pay that, just move on. There are plenty of other clients who you will be better off working with.
❄❄❄ Just A Forum Contributor --- This isn't against forum guidelines ❄❄❄