Though the ideology of efficiency has been investigated for many centuries, still it has not gained a clear definition and interpretation either in the scientific literature, or in the practice of corporate governance. This paper seeks to examine the mainstream theories of corporate governance in an attempt to suggest that efficient corporate governance has no logical claim to "objectivity" and it does not always contribute to trust-building. The purpose of this paper is to explore the ideology of efficiency, both with respond to its inconsistency and incoherence within trust-building corporate governance. The results suggest that efficiency is ideological and political concept that fails in repairing the breach of trust-building corporate governance. The efficiency as a new ideology of trust-building corporate governance promises to advance our understanding of corporate purpose beyond the old "shareholders-versus-stakeholders" and "shareholders-versus-society" debates.