From my limited reading about the topic, that is not the case. According to wikipedia, politics is the practice and theory of influencing other people on a civic or individual level[1]. I have taken just one, very 101 like course on Governance and the most prominent theories that were discussed used politics in the broader sense (but detailed from a narrower perspective due to the scope of the class). Group theory[2], for instance, calls nearly all interactions between interest groups as political. Elite Theory [3], also used similar connotations.
[1] http://en.wikipedia.org/wiki/Pluralism_(political_theory)
[2] http://en.wikipedia.org/wiki/Politics
[3] http://en.wikipedia.org/wiki/Elite_theory