"first lie, then deny" would be consistent with which approach to social responsibility?

Obstructionist stance.

Explanation:

The social responsibility of the organization is the obligation of an organization to act in a way that serves both its own interests and the interests of society.

Organizations do not yet have a definite and unique stance on social responsibility, so there are four different approaches to social responsibility, which are: Obstructionist, Defensive, Accommodative, and Proactive.

The phrase "First lie, then deny" fits the standards advocated by the obstructionist approach, as this approach demonstrates a denial of social responsibility and prioritizes the organization's economic activities.  That is, this approach states that when it comes to corporate social responsibility with a society, you must first lie and then deny any responsibility.