The short answer is no, assuming I interpret the meaning of your definition of “social market economic model” correctly. And stability is not what we want in an ever-evolving evolution.
Our goal should be to become evolutionarily responsible, which can only come from a new interpretation of freedom in which the paradoxical rules of collective freedom protect and promote the interest of individual freedom.
Some of those collective freedoms may include social constructs. Some will not. An economic model solely focused on social constructs tends to ignore an equilibrium with personal freedom upon which the renewal of our evolution is predicated.