Kill the Postmodern Story . . . But Let Postmodernism Live

I don't have much issue in speaking of postmodernism as a legitimate cultural/intellectual expression (though D. W. Congdon may disagree). I have a difficulty denying the crisis of stable representation and meaning across disciplines as significant 'shift' of some sorts. What I am coming to suspect is that it may in fact be the postmodern story that is the lie in all this. I can remember about ten years ago sitting in an undergraduate class on the sociology of religion learning about the new postmodern reality with its 'incredulity towards metanarratives' and its fragmenting into local, tribal stories. Since then I have heard that story recounted innumerable times in the service of various church related often 'emergent' projects. It has become the default preface in any attempt of the 'new'.
It seems clear to me now, made increasingly clear through writers like Zizek, that the Story of capitalism only grew stronger and incarnated or birthed or abducted the postmodern story as a mode of infinite market production. As quickly as there was any possible life to the postmodern story it was as quickly enveloped into the market. The Master Signifier of the Market has now been able to hide behind the multiplicity of the many expressions all of which offer no true alternative to the current economic model. The postmodern story it seems to be one initiator in this ongoing production.