Jim, I'm sure you wouldn't apply that non economic attitude to your own life's work would you? I bet you always feel you should be paid fairly for your labour. If music is your job, ( and I know some people on here resent those who do succeed at it) then it's the same as being a plumber or a teacher or whatever. I respect my fellow workers in whatever trade they follow and pay them accordingly for their services. Therefore if someone wishes to enjoy my services as a musician why should your attitude apply?
And when they do buy my "product" I'm pleased, not flattered, because I know it's good and worth its price, like any tradesman in any marketplace.