I think that point was made earlier by Alexander Gerschenkron and the Polish Marxist-turned-reactionary Leszek Kolakowski.
I think Gerschenkron's point is particularly interesting. He argued that the October Revolution (or at least its outcome) was nothing more than the implementation of Western European (esp. German) institutions and industrial organization to overcome Russia's backwardness (a somewhat similar argument was also proposed by Michael Burawoy) - Marxism was adopted as a civil religion to mobilize the massess and secure their support for the government industrialization project. It may explain why Marxism was selectively modified and rejected by the Soviet ruling elites.
I may add that Marxism was not unique in this respect - Huczynski (_Management gurus : what makes them and how to become one,_ London: International Thomson Business Press, 1996) argues that virtually every social science theory or hypothesis can be molded into a managerial ideology. Not to mention possible transformations into cult ideology (cf. freudism).
wojtek